Antenna Basics Ppt

These respective points are paramount to pay attention to and keep track of. Here we discuss microstrip antenna, their polarisation and radiation pattern, applications and upcoming trends. Will only be scratching the very surface of tactical communications in the MC. DefinitionsP- 5 3. MATLAB is an interactive program for numerical computation and data visualization; it is used extensively by control engineers for analysis and design. BloodbornePPT. Emphasize that this is only the tip of the iceberg. The antenna transmits and receives the modulated carrier signal at the radio frequency (RF) portion of the electromagnetic spectrum. C 2009 K7FE Information was gathered far and wide for this presentation. Once an array has been designed to focus towards a particular direction, it. It has two types. Radar Fundamentals. Noiseless Receiver. Typical examples of this type would be seen installed on motor vehicles for two way communications. Recent technology developments have made advanced antenna systems (AAS) a viable option for large-scale deployments in existing 4G and future 5G mobile networks. Biconical Antennas have dipole like characteristics (e. When attached to a source of high-frequency AC power, an antenna acts as a transmitting device, converting AC voltage and current into electromagnetic wave energy. I checked the SWR on the tripod, at 50 watts and it was less than 1. The electronic steering is much more flexible and requires less maintenance than the mechanical steering of the antenna. Basic transmission parameters, such as antenna gain, beam width, free-space path loss, and the basic link power equation are exploited. A highly directional antenna has a dispersion of 80 degrees to as little as 28 degrees, and is used for point-to-point transmission. The radius of the patch is n = 4. Download Permission. More on this later. BloodbornePPT. It allows you to recognize and understand the power of communication, dentify specific communication problems and apply treatments and learn techniques to manage and ensure proper communication over cables, wifi or radio frequency antennas. A patch antenna is placed at the focal point (d = f) and it radiates toward the metasurface as indicated in Fig. Radar Principles & Systems With your facilitator LT Mazat I. The shape of the antenna is in the form of a dish; therefore, it is popularly known as dish antenna or parabolic dish. The initial planning of any Radio Access Network begins with a Radio Link Budget. T), MCA, MSc, MS, Electronics and Communication (EC), Mechanical, Electrical and Electronics (EEE), Instrumentation (IC) and Civil Engineering students with PPT and Abstract based on technical IEEE articles and journals. Antenna Aperture ANTENNA INTRODUCTION / BASICS Rules of Thumb: 1. Note: All presentations are in. Digital Beamforming Analogue Beam Forming. Antenna Characteristics Page 3 (a) 3D power pattern (b) 2D power pattern in rectilinear format Figure 5: Power patterns for an arbitrary antenna [2] The maximum sidelobe level (SLL) is often of concern to antenna designers, particularly if the antenna was designed to focus power in a speci c direction, since sidelobes essentially represent a. Lecture 34 Electromagnetic scattering, Rayleigh scattering, scattering from a dielectric sphere, scattering-cross section and scattered radiation, scattering of sunlight in the atmosphere (why the sky is blue), radars. nerepeaters. Antennas are rather complicated as well, as you have to take into consideration the level of efficiency, heat, bandwidth, RF energy, and antenna length. " What exactly does that mean? Well, you need to know what a fractal is. Nanotechnology offers great potential for benefit to humankind, and also brings severe dangers. +4 Votes 4 Votes 0 Votes The following terms have been auto-detected the question above and any answers or discussion provided. On the transmitting end, the antenna emits the microwave signal from the transmission line into free space. Ham Radio Basics For nearly one hundred years, ham radio has been a part of many people's lives and it is a part of American technological history. In this page, we will briefly discuss. Telecommunications PowerPoint provides a good template for antenna or communication presentations. These antennas emit radio frequencies that communicate with the transponder. ) to the receiver in a telecommunication system. Hertzian antennas do not require a path to either ground or a ground plane. It provides a receiving antenna with the. Passive radio telescopes are receiving antennas. Unit 1, Basic Antenna Measurements, introduces two basic antenna types and allows the student to measure a number of important antenna characteristics. mitter leaves the information, which is shown in blue, at low frequencies so that it can not be radiated; the radiating antenna only broadcasts high frequencies. There are three types of element within a Yagi antenna: (i) Driven element: The driven element is the Yagi antenna element to which power is applied. There is no difference between a traditional TV antenna and an HDTV or digital antenna. Some basic references are provided at the end of these viewgraphs. The basic concept of spread spectrum technique is that the information waveform with small bandwidth is converted by modulating it with a large-bandwidth waveform (Hofmann-Wellenhof et al. 1-19 Effect of impedance in ground. 3C ANTENNA HANDBOOK 1. A mobile device antenna must be small and lightweight enough to fit in the limited amount of space allotted for it in a smartphone’s design. BES research emphasizes discovery, design, and understanding of new materials and new chemical, biochemical, and geological processes. As in biomedical engineering, antenna is used to. He concludes with a discussion of mechanical scanning antennas. Topics,advantages of plasma antenna, plasma antena, plasma antennas ppt, plasma antennas pdf, plasma antenna seminar. Inlays can be wet , which signifies that they have adhesive on their backs, or dry, which means they contain no adhesive. Example: 160 m 50 ft vertical = 34. An example of a single-pole double-throw (SPDT) RF switch uses PIN diodes as switching elements and passive components that decouple the RF and dc bias signal paths. A Distributed Antenna System, as the name implies, “distributes” signal. Antenna Modeling With 4NEC2 Presented to HOTARC By Craig Weixelbaum May 22, 2014 Basic Modeling Approach using 4Nec2 The goals of this 30 minute presentation on 4Nec2: 1. Antenna Fundamentals. The most basic antenna is called "a quarter wave vertical", it is a quarter wavelength long and is a vertical radiator. The following link is a good presentation of basic antenna and propagation theory, good reading for those that want to learn more about antennas and their magic. Microstrip antenna are one of the most popular types of printed antenna. •The uplink/downlink commands and telemetry data's are established once the satellite antenna is perfectively deployed in space. Unlike isotropic antennas, dipole antennas are real antennas. Horn antennas are used directly as radiators aboard satellites to illuminate comparatively large areas of the earth, and they are also widely used as primary feeds for reflector. Most antennas are resonant devices, which operate efficiently over a relatively narrow frequency band. In response, Constantine Balanis has updated his classic text, Antenna Theory, offering the most recent look at all the necessary topics. pdf), Text File (. Antenna arrays, element factor and array factor, linear antenna arrays, phase arrays, binomial arrays, radiation patterns. (Heinrich Hertz was the first to build a radio transmitter and receiver while understanding what he was doing. External capacitors allow. They can be found in vehicles (automobiles), ships, aircrafts, buildings etc. The antenna is the most visible part of the satellite communicationon system. A Beverage antenna is probably one of the simplest and cheapest antennas one can build but it does have one-draw back in that you need a lot of space or a very long thin garden. helped people grasp the concepts better than they would through “death by PowerPoint. Received by Email - 09/22/2009. Panel antennas of 2G,3G,4G,5G bands, outdoor remote radio units, climatic vandal-proof telecommunication cabinet and power and optic cables on the cable shelfs are as parts of telecommunication equipment of radio basic station are installed on the metal tubular masts on the roof. 56 MHz customized antenna for ST25 NFC / RFID Tags Introduction The ST25 NFC (near field communication) and RFID (radio frequency identification) tags extract their power from the reader field. TBS is the "The BASIC School" so they will not be getting the most high-speed gear out there. Gain of rectangular X-Band Aperture G = 1. Most antennas are resonant devices, which operate efficiently over a relatively narrow frequency band. ½ Wave (Dipole) Wire Antennas l Easy to Build l Two pieces of wire, 1:1 Current Balun, coax from balunto transceiver, support for wire (ends) or balun (center) l Basic formula for overall length of wire (both pieces) is L=468/f(MHz) (so at 14. The basics of Command & Control and of radio procedures. It is a special case of the. The number, geometrical arrangement, and relative amplitudes and phases of the array elements depend on the angular pattern that must be achieved. Here we discuss microstrip antenna, their polarisation and radiation pattern, applications and upcoming trends. The RF common port might be connected to the system antenna in a typical application with RF posts one and two connected to transmitter and receiver. Beware of misprints! ICTP-ITU-URSI School on Wireless Networking for Development The Abdus Salam International Centre for Theoretical Physics ICTP, Trieste (Italy), 5 to 24 February 2007. In practice complicated solutions of Maxwell's equations for given boundary conditions are usually not. The number of antennas in an array can be as small as 2, or as large as several thousand (as in the AN/FPS-85 Phased Array Radar Facility operated by U. reliable, confirmable QSOs. The total power density on the sphere (also referred to as flux density) may be expressed as: Pd EIRP 4πr2 Pt 4πr2 Watts m2 (1). The text, Antenna Theory and Design, W. Radar Fundamentals. of ECE P a g e | 5 1. (Marconi antenna) When used at low frequencies the field should be vertically polarized and antenna could be a tower. Signal +Noise (1) Aperture (Antenna) Receiver (Rx) Signal Generator. Antenna Design and. Every radio must have some kind of antenna. Kraus and R. The locations of these facilities are shown in the map above. Antennas are rather complicated as well, as you have to take into consideration the level of efficiency, heat, bandwidth, RF energy, and antenna length. The basic concept of spread spectrum technique is that the information waveform with small bandwidth is converted by modulating it with a large-bandwidth waveform (Hofmann-Wellenhof et al. A multiband antenna may have lower than average gain or may be physically larger in compensation. Chapter 3 Antennas. You may have stumbled upon volleyball on television. It is usually easier to calculate the properties of transmitting antennas. Emphasize that this is only the tip of the iceberg. An example of a single-pole double-throw (SPDT) RF switch uses PIN diodes as switching elements and passive components that decouple the RF and dc bias signal paths. 2 cm) You can “curl up” such an antenna and make a helical antenna. TheoryP- 4 3. The shape of the antenna is in the form of a dish; therefore, it is popularly known as dish antenna or parabolic dish. Discover DXing! How To Hear Distant AM, FM & TV Stations. Chapter1 Introduction Global demand for voice, data and video related services continues to grow faster than the required infrastructure can be deployed. •The antenna deployment and solar panel deployment are programmed as an automatic sequence task once the satellite is ejected from its launch vehicle. 149 subscribers. Antenna =Prad available • The antenna power, P ant, is the total power input to the antenna system. Antenna Basics White Paper This white paper describes the basic functionality of antennas. The text, Antenna Theory and Design, W. We’ll discuss more advanced concepts in the subsequent chapters. It allows you to recognize and understand the power of communication, dentify specific communication problems and apply treatments and learn techniques to manage and ensure proper communication over cables, wifi or radio frequency antennas. This solution simplifies site configuration and reduces 5G deployment costs, which helps to achieve fast 5G deployment. Microstrip patch antennas (MPAs) consist basically of three layers: metallic layer with antenna radiating patch, dielectric substrate and another metallic layer as the ground plane []. Antenna theory and antenna terminology can seem complicated to the uninitiated. It is usually used with a radio transmitter or radio receiver. 7 1 GROUNDPLANE ANTENNA Model FA -2 Reliable communications in radio systems depends upon the over-all effectiveness of both the base station and mobile unit antennas. 39 MB Download History. The ADF receives signals on both loop and sense antennas. The two antennas are called LOOP antenna and SENSE antenna. The words antenna and aerial are used interchangeably. BloodbornePPT. Keyrouz 1 andD. Electromagnetic waves are often referred to as radio waves. DAS (Distributed Antenna System) Training course covers the concepts behind network of spatially separated antenna nodes connected to a common source via transport medium that provides wireless service within a geographic area or structure. There are many specific types of antennas, but three basic types are used most of the time, and will be useful in building a wireless network. • Antenna - the main purpose of the antenna (also called the “dish”) is to focus the transmitted power into a small beam and also to listen and collect the returned signal •Feedhorn - directs the signal from the transmitter onto the antenna (also directs the return signal from the antenna to the receiver). Matched-line loss for this cable is about 1. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Antenna Basics - Free download as Powerpoint Presentation (. Antennas • The antenna is VERY important if long range is important • A quarter wave antenna is an easy and good solution, but it is not small (433 MHz: 16. The Instrument Landing System adds glide-slope, or elevation information. A commonly used directional antenna is the Yagi-Uda Array, usually just called a Yagi. This is a great dual band antenna that can be used outside or inside set-up on a table in front of a window. The function of the antenna during transmission is to concentrate the radar energy from the transmitter into a shaped beam that points in…. Telecommunications PowerPoint provides a good template for antenna or communication presentations. The concept goes beyond the number of antennas and deals with how the radio frequency itself is. Many modern telecommunications standards, particularly in the consumer space, have adopted multiple antenna (MIMO) technology because of the significant advantages it provides over similar system utilizing single antenna transceivers (SISO). Purpose to refresh basic concepts related to the antenna physics needed to understand better the operation and design of microwave links and systems Outline Introduction Review of basic antenna types Radiation pattern, gain, polarization Equivalent circuit & radiation efficiency Smart antennas Some theory Summary Quiz We use a transmitting. com Abstract— The adaptability of the phased array antenna makes it attractive for a variety of multi-beam applications. Multiple antennas for both transmitters and receivers vastly improve communication performance. Panel antennas of 2G,3G,4G,5G bands, outdoor remote radio units, climatic vandal-proof telecommunication cabinet and power and optic cables on the cable shelfs are as parts of telecommunication equipment of radio basic station are installed on the metal tubular masts on the roof. Vertical Antennas Mono band ¼ wavelength with ¼ wave counter poise or radials or Vertical Dipole that does not require radials. Antenna Aperture ANTENNA INTRODUCTION / BASICS Rules of Thumb: 1. Wire cutters. In his first lecture on antennas (and eighth lecture in the series on radar systems engineering), Dr. For good communications with a radio operating in the HF range (2. The concept of optimum beamforming is introduced in Section 3. SPRAWDZIC #4--6!!!! Antenna Basics Outline Reciprocity Theorem Point Radiator Concept Irradiance, PFD Directivity, Gain, Radiation Efficiency EIRP Power Transfer EM – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow. One of the major keys to understanding Yagi theory is a knowledge of the phases of the currents flowing in the different elements of the antenna. W4RNL - Top Five Backyard Multi-Band Wire HF Antennas. com - id: 4a9fb0-NWU5O. 98 KB Want a Good Microwave Antenna-Drink More Coffee. ppt Author: joeld Created Date: 9/16/2007 7:51:32 PM. Cellular antennas are a familiar feature in nearly every corner of the world. Thrimurthulu Lecture Notes Antenna & Wave Propagation CREC Dept. This solution simplifies site configuration and reduces 5G deployment costs, which helps to achieve fast 5G deployment. 2 PRACTICAL ANTENNA DESIGN 140 -150 MHZ VHF TRANSCEIVERS Online Edition ELPIDIO LATORILLA LEDF Media antennas for radio transceivers but who has only a basic knowledge in radio - communications technology. The transmitter generates a high power of electromagnetic wave at radio wavelengths. Typical examples of this type would be seen installed on motor vehicles for two way communications. Phased Array Beamforming ICs Simplify Antenna Design By Keith Benson Abstract Wireless communications and radar systems are facing increasing demands on antenna architectures to improve performance. Example model 5. This is often a good solution since it utilizes unused volume for a product. The best way to determine the range to the target is to transmit a pulse of finite length and sample the power density at set times after the pulse has exited the antenna. orbanmicrowave. Horn antennas are used directly as radiators aboard satellites to illuminate comparatively large areas of the earth, and they are also widely used as primary feeds for reflector. An active antenna, also known as a phased array antenna, is defined by the Phased Array Antenna Handbook as consisting “of multiple stationary elements, which are fed coherently and use variable phase or time delay control at each element to scan a beam to given angles in space. A dipole antenna is the simplest, usually the least expensive and most popular type of radio antenna used in ham radio and radio communications and has been around longer than you can remember. The trace is the basic measurement for all time-domain GPR sur­ veys. There is no difference between a traditional TV antenna and an HDTV or digital antenna. Initially, Commercial Business Equipment was the only source of DMR handhelds and mobiles. This antenna is often built of printed circuit board material and the substrate makes up the patch antenna’s dielectric. In practice complicated solutions of Maxwell’s equations for given boundary conditions are usually not. ANTENNA BASIC CONCEPTS. In order to take these effects into consideration, the whole IoT product must be included in the antenna simulations. Focusing Basics. Hello, and welcome to the RF Basics and Getting Started presentation. compatible antenna CERT Emergency Communications 24 Image from: alphabet, and basic protocols. Microstrip antenna are one of the most popular types of printed antenna. “Free space” is the electrical engineer’s term for the emptiness or void between the transmitting and receiving antennas. Theoretically, using two orthogonal polarizations, radio-link capacity can be the double, but a crosspolarization interference can appear in the reception Small Satellite Link Budget Calculation. Cellular antennas are a familiar feature in nearly every corner of the world. Draw the absorption spectrum of chlorophyll and compare it to the action spectrum of photosynthesis. In understanding the basic Yagi antenna theory, the different elements of the Yagi antenna react in a complex and interrelated way. Hybrid Coupler Basics 3dB, 90° Hybrid Couplers A 3 dB, 90° hybrid coupler is a four-port device that is used either to equally split an input signal with a resultant 90° phase shift between output ports or to combine two signals while maintaining high isolation between the ports. An Antenna is a transducer, which converts electrical power into electromagnetic waves and vice versa. The distance between the patch and the ground plane - the. This page is designed as a basic introduction to some of the key concepts of ground penetrating radar. Sarkar Department of Electrical and Computer Engineering, Syracuse University, N. ppt Author:. Introduction to Antenna Antenna is an electrical device which converts electric power into radio waves, and vice versa, antenna are used not only on radar but also on jammers, RWR and communication system. Electromagnetic waves are often referred to as radio waves. Fig 1 Basic Structure of Microstrip Patch Antenna So many advantages and applications can be mentioned for microstrip patch antennas over conventional antennas. In the second part of this Antenna Basics series, you will learn more about the physics of how antennas work. Power Electronics. A great introduction to DXing the AM, FM and TV bands. External capacitors allow. Plasma Confinement-Summary and Topical Report. An antenna's gain is a measure of how well the antenna will send or pick up a radio signal. The parabola is defined as the locus of a point which moves so that it is always the same distance from a fixed point (called the focus) and a given line (called the directrix ). The basic premise behind massive MIMO is to reap all the benefits of conv entional MIMO, but on a much greater scale. Antenna Basics. Novel Approaches to the Design of Phased Array Antennas By Danial Ehyaie A dissertation submitted in partial fulfillment of the requirement for the degree of Doctor of Philosophy (Electrical Engineering) in The University of Michigan 2011 Doctoral Committee Professor Amir Mortazawi, Chair Professor Mahta Moghaddam Professor Kamal Sarabandi. Given that we're in a transition phase where some networks still don't offer live streams online of their content, or hide them behind a pay wall/require a cable subscription sign-in, an antenna can ensure that you never miss the live sports, local news, or other appointment viewing. Note that when a single number is stated for the gain of an antenna, it is assumed that this is the maximum gain (the gain in the direction of the maximum radiation). Radio telescopes are based on the basic principle of optical telescopes. Antenna Fundamentals An antenna is a device for converting electromagnetic radiation in space into electrical currents in conductors or vice-versa, depending on whether it is being used for receiving or for transmitting, respectively. "Radio Astronomy and Satellite Communication, two N. PRACTICAL ANTENNA DESIGN 140 -150 MHZ VHF TRANSCEIVERS Online Edition. Camera Lens Guide. Antenna Definition •“The antenna launches energy from a transmitter into space or pulls it in from a passing wave for a receiver. MATLAB is an interactive program for numerical computation and data visualization; it is used extensively by control engineers for analysis and design. Will only be scratching the very surface of tactical communications in the MC. Antennas come in all shapes and sizes, depending on the frequency the antenna is trying to receive. Balanis – The discipline of antenna theory has experienced vast technological changes. 1 Introduction: An antenna (or aerial) is an electrical device which converts electric power into radio waves, and vice versa. Both antennas (satellite and earth station) should have the same polarization. The TV channels Hertz (Hz) means cycles per second. Ham Radio Basics For nearly one hundred years, ham radio has been a part of many people's lives and it is a part of American technological history. The pattern of an array with general geometry and elements is derived in Section 3. The Basics of a Capital Campaign [Read-Only] Created Date: 20111123091421Z. Figure 1 shows a patch antenna in its basic form: a flat plate over a ground plane. The wireless communication is done in the form of waves. Radar Fundamentals. Ball point pen or fine felt tipped marker. In Figure 1, M is the number of rows, and N is the number of columns of the 2D antenna array. In this page we will cover smart antenna basics, types, applications and smart antenna advantages. It mentions functions and operation of lens antenna. At the receiving end the antenna does but a few basic- principles must be understood. MATLAB ® and Simulink ® products make it easy to use signal processing techniques to explore and analyze time-series data, and they provide a unified workflow for the development of embedded systems and streaming applications. dielectric lens antenna and metal plate lens antenna. A ground plane antenna is essentially one half of a dipole mounted vertically. Antenna Theory Analysis and Design, 3rd Edition by Balanis. Topics include: propagation, seasonal conditions, equipment, antennas and reference materials. In this fashion, the radar antenna works much as the reflector in a flashlight. Introduction To Basic Electronics Learning about basic electronics and creating your own projects is a lot easier than you may think. Download Antenna Theory: Analysis and Design By Constantine A. Get More Information about PPT Presentation Smart Antenna by visiting this link. HEADQUARTERS, DEPARTMENT OF THE ARMY. INTRODUCTION TO BASIC RADAR Figure 1-1 contains the basic terms that you need to of an object with respect to the antenna, giving the operator data on range, bearing, and altitude. Generally people don't think of radio-frequency radiation in terms of discrete particles (oscillating electrons and photons) -they typically use the wave model instead, as it's much easier to use. For a weather radar, the wavelength of the signal is ~ 10cm • Antenna - the main purpose of the antenna (also called the "dish") is to focus the transmitted power into a small beam and also to listen and collect the returned signal. The tag and reader antennas are inductances mutually coupled by the magnetic field, similarly to a voltage transformer (see Figure 1). You are welcome to visit a website that goes along with a course at the University of Houston on microstrip antennas (PowerPoint viewgraphs from the course may be found there, along with the viewgraphs from this short course). 53 Distribution Restriction: Approved for public release; distribution is unlimited. inefficient antenna produces a small-amplitude EM wave for the same feed power, and converts most of the power into heat. Your first antenna – the half-wave dipole. Microwave Engineering. A commonly used directional antenna is the Yagi-Uda Array, usually just called a Yagi. maximum to minimum voltage is known as VSWR, or Voltage Standing Wave Ratio. The gain of these antennas is between the ranges between 8dBi to 20dBi. A multiband antenna is an antenna designed to operate on several bands. Thiele (Artech House, 1997), and a comprehensive set of notes in PowerPoint format are distributed on the first day of the course. Microwave Radio Antenna Link Fundamentals [SP6105] Starting with microwave basics of transmission, the course steps through the installation of a microwave antenna. Experience in brand strategy development, with proven impacts to market. Antonije R. Operates from 1 KHz to 60 KHz. The vertical half-rhombic antenna and the long-wire antenna (Figure 7-10) are two field-expedient directional antennas. Introduction to Antenna Antenna is an electrical device which converts electric power into radio waves, and vice versa, antenna are used not only on radar but also on jammers, RWR and communication system. Download Antenna Basics Ppt Comments. 2 cm) You can “curl up” such an antenna and make a helical antenna. This video covers some vary basic facts about antennas, or devices that are designed to couple electrical energy from circuits into waves propagating through free space. 8 Tschebyscheff Matching-techniques There are other techniques for matching a line to the antenna; T-Match Gamma Match Baluns. • Most popularly used antennas are: Parabolic Reflector Antennas • Planar Phased Arrays. Air Force School of Aerospace Medicine, Occupational and Environmental Health Dept, Consultative Services Division. Received by Email - 10/23/2009. The shape of the antenna is in the form of a dish; therefore, it is popularly known as dish antenna or parabolic dish. Horn Antennas Engineering 635821 PPT. Aperture and Depth of Field. This is one of the basic problems of a SISO system. It is a hypothetical antenna where the instantaneous current magnitude is constant along its length. The radius of the patch is n = 4. It is on water. The basic communication parameters are discussed in this chapter to have a better idea about the wireless communication using antennas. An active antenna, also known as a phased array antenna, is defined by the Phased Array Antenna Handbook as consisting "of multiple stationary elements, which are fed coherently and use variable phase or time delay control at each element to scan a beam to given angles in space. In understanding the basic Yagi antenna theory, the different elements of the Yagi antenna react in a complex and interrelated way. By continuing to browse or by clicking “Accept All Cookies,” you agree to the storing of first- and third-party cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. The parabola is defined as the locus of a point which moves so that it is always the same distance from a fixed point (called the focus) and a given line (called the directrix ). NN02-201 ONE mXTEND™ | 5G | Cellular IoT Antenna Operating range: 800 - 10600 MHz Best for: 824 - 7125 MHz Dimensions: 7. Dr, John Kraus-W8JK, Professor Emeritus, Ohio State University, Columbus, Ohio. A Distributed Antenna System, as the name implies, "distributes" signal. 1 Antenna Arrays Arrays of antennas are used to direct radiated power towards a desired angular sector. Wire cutters. Antenna Basics: Radiation Patterns, Permittivity, Directivity, and Gain October 12, 2016 by Mark Hughes Antennas allow information to be transferred to distant locations. Mobile Antenna Basics; Mobile Low Profile Antennas; 2009 MUD Powerpoint (1. Camera Lens Guide. Figure 3: Example of a Silvus MIMO radio with two gooseneck antennas being used to transmit HD video at the Indianapolis 500. ppt), PDF File (. The SATCOM FBCB2-BFT System FBCB2 - BFT consists of an FBCB2 Appliqué Computer, Kontron computer, or FBCB2 Tough-book using GPS for position locating, L-Band Satellite as its means of communications and a Mission Data Loader to transfer large files. dielectric lens antenna and metal plate lens antenna. The radiation pattern for this antenna is donut shaped, with the antenna rod running through the hole. Most antennas are resonant devices, which operate efficiently over a relatively narrow frequency band. As a result, the common antenna pattern can be steered electronically. Whereas we focus on three basic versions of the helical antenna, the reader needs to be aware that helical antennas include a large class of spirals and conical helices that take. This implies that only the high-frequency carrier wave is broadcast, which is useless. Method of Moments Applied to Antennas Tapan K. Antennas can be broadly classified as omnidirectional and directional antennas, which depends on the directionality. 39 MB Download History. For x-pol case, the total number of antenna elements is 2MN. 3, which can be seen as a layered geologic structure. " Thus, active antennas have. Shields and ground. small antenna goodness, one must sacrifice the bandwidth and directivity of the large traveling wave helical antennas. 96 feet long or 16. Today I will highlight the information I found while discovering a great deal of information about antennas. Keyrouz 1 andD. by Steve Whitt. The receiver translates the information into a display. Get More Information about PPT Presentation Smart Antenna by visiting this link. Beware of misprints! ICTP-ITU-URSI School on Wireless Networking for Development The Abdus Salam International Centre for Theoretical Physics ICTP, Trieste (Italy), 5 to 24 February 2007. 0 GHz shaped antenna reflector with an LPDA antenna feed is also available in an optional extended 2. Effective aperture can be expressed as a function of the antenna gain and the wavelength of interest. Basic Wire Antennas Part I: Dipoles by Marc C. •The uplink/downlink commands and telemetry data's are established once the satellite antenna is perfectively deployed in space. Author: miller Created Date: 09/15/2009 09:34:22 Title: Radar Basics: Pulses and. The antenna can be anything from a long, stiff wire. of ECE P a g e | 5 1. Many are also components of other knots or they provide the underlying structure. In Figure 1, M is the number of rows, and N is the number of columns of the 2D antenna array. Transmitted Pulse. Beware of misprints! ICTP-ITU-URSI School on Wireless Networking for Development The Abdus Salam International Centre for Theoretical Physics ICTP, Trieste (Italy), 5 to 24 February 2007. Less commonly available from CATV companies is the 3/4-inch 75-Ω. Highly directional antennas use a line of perpendicular elements, a can or cylindrical enclosure, or both. Camera Lens Guide. ) to the receiver in a telecommunication system. d A TRANSMITTER ANTENNA RECEIVER ANTENNA 27 Flynn/Katz - SDR July 1, 2010. BASIC ELECTRONICS Questions and Answers pdf free download for eee & ece. Passive radio telescopes are receiving antennas. The first three chapters provide basic background on the theo ry of characteristics and shock waves. Image File Formats. Short Dipole Antenna. These antennas are extremely high gain, usually 12 dBi or higher, and are used to extend the range of outdoor hotspots in specific directions or to reach an outbuilding. This article is a primer on antenna theory. Basic Antenna Theory Ryszard Struzak Note: These are preliminary notes, intended only for distribution among the participants. The random wire antenna is probably one of the least expensive, easiest and cheapest HF antennas to use if you have a tuner and you want to get the "most" out of a length of "random" wire without having to pull out that calculator, doing the math, getting the center insulator built or bought, running the feedline, and all the rest that goes. For example, the impedance of a /4 antenna is 36. Monopole Antenna : Monopole Antenna ¼ wavelength fed at one end Fed with unbalanced feedline with ground conductor connected to earth ground. Some diagrams are directly from the books. Basic transmission parameters, such as antenna gain, beam width, free-space path loss, and the basic link power equation are exploited. In case of wireless communication systems, antennas play a prominent role as they convert the. By increasing the number of receive and transmit antennas it is possible to linearly increase the throughput. This car antenna amplifier can be used up to 70 MHz and is specially designed to boost. Radar Fundamentals. Telecommunications PowerPoint provides a good template for antenna or communication presentations. Starting with Hertz's Antenna model followed by a short introduction to the fundamentals of wave propagation, the important general characteristics of an antenna and its associated parameters are explained. I checked the SWR on the tripod, at 50 watts and it was less than 1. External capacitors allow. antenna have a strong influence on the antennas electrical features (Fig. 1, called "Antenna Basics--A Review, in the ARRL General Class License Manual for Ham Radio, 9th Edition, 2019-2023. Do you have PowerPoint slides to share? If so, share your PPT presentation slides online with PowerShow. Contents 1 Radiation Pattern 2 2 Beamwidth 5 3 Radiation Power Density 7 4 Radiation Intensity 10 5. A fundamental list of antenna theory concepts, an antenna basics menu is given here. 53 Headquarters Department of the Army Washington, DC 5 August 2009 TACTICAL RADIO OPERATIONS. Brief History DMR was developed in Europe by ETSI, European Telecomm Standards Institute and was adopted as Commercial Standard 20 years ago. This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen. Basic Antenna Theory and Facts. ) to the receiver in a telecommunication system. first Radiation from deep space detection PART 1 Radiation through space and back PART 2 We will recreate these New Jersey first into the present in such a way that you will understand how these science pioneers handled basic communication and space principles with hard work, determination. 3 Half-Power-Beam-Width P - 5 3. Many modern telecommunications standards, particularly in the consumer space, have adopted multiple antenna (MIMO) technology because of the significant advantages it provides over similar system utilizing single antenna transceivers (SISO). This article is a primer on antenna theory. 2 meter length of 14 AWG bare, solid copper wire. 2 cm) You can "curl up" such an antenna and make a helical antenna. com - id: 4a9fb0-NWU5O. Antenna Basics 9 Basics_e. To achieve this we used microstrip. Stored in this RFID transponder is some basic account information, such as an identification number. Power Electronics. This is often a good solution since it utilizes unused volume for a product. antenna have a strong influence on the antennas electrical features (Fig. Illustration. W4RNL - Top Five Backyard Multi-Band Wire HF Antennas. Antennas can be broadly classified as omnidirectional and directional antennas, which depends on the directionality. A practical approach to HF and VHF antennas, plus antenna By Terry Graves, K7FE C 2008 & 2009 K7FE Rev A. 1 Antenna Arrays Arrays of antennas are used to direct radiated power towards a desired angular sector. Hence, we need to have a look at the properties of waves in the communications. McGraw-Hill, 2002, 938 pages. 2:1 (or simply 1. This paper deals with the principle and working of smart antennas and the elegance of their applications in various fields such a 4G telephony system, best suitability of multi carrier modulations. MDA’s radome-mounted SAS antennas are pre-configured for 45-degree. It is a hypothetical antenna where the instantaneous current magnitude is constant along its length. To determine the strength of an antenna, we refer to its gain value. different, channel for each pattern, even if the are colocat,ed. Today I will highlight the information I found while discovering a great deal of information about antennas. The line of sight distance is that exact distance at which both the sender and receiver antenna are in sight of each other. Basic transmission parameters, such as antenna gain, beam width, free-space path loss, and the basic link power equation are exploited. A single driven element, typically a dipole, propagates RF energy; elements placed immediately in front of and behind. PRACTICAL ANTENNA DESIGN 140 -150 MHZ VHF TRANSCEIVERS Online Edition. ppt), PDF File (. Beware of misprints! ICTP-ITU-URSI School on Wireless Networking for Development The Abdus Salam International Centre for Theoretical Physics ICTP, Trieste (Italy), 5 to 24 February 2007. PowerPoint Presentation. The basic antenna The most basic antenna is called "a quarter wave vertical", it is a quarter wavelength long and is a vertical radiator. Passive radio telescopes are receiving antennas. Antenna: An antenna is a transducer that converts radio frequency (RF) fields into alternating current or vice versa. com - id: 4a9fb0-NWU5O. Basic Antenna Parameters Radiation Resistance RA: The equivalent resistance which would dissipate the same amount of power as the antenna radiates. Overview - to be able to properly select antennas for a radio link, certain antenna concepts need to be understood. And a longer wavelength implies a slower frequency 2) Frequency Bands: In general,. patch antennas are sometimes referred to as planar antennas. Microwave Radio Antenna Link Fundamentals [SP6105] Starting with microwave basics of transmission, the course steps through the installation of a microwave antenna. 2) is considered excellent in most cases. Welcome! This is one of over 2,200 courses on OCW. PRINCIPLESOFRADIOTRANSMISSIONANDRECEP- TIONWITHANTENNAANDCOILAERIALS By J. Antenna Synthesis 4. The most basic antenna is called "a quarter wave vertical", it is a quarter wavelength long and is a vertical radiator. An antenna is a device to transmit and/or receive electromagnetic waves. Microwave Radio Antenna Link Fundamentals [SP6105] Starting with microwave basics of transmission, the course steps through the installation of a microwave antenna. This is often a good solution since it utilizes unused volume for a product. Active Antenna Basics. And since all EM waves travel at the same speed, the faster it oscillates the shorter the wavelength. N4UFP Antenna Overview 1 An antenna is a device that: Converts RF power applied to its feed point into electromagnetic radiation. ppt), PDF File (. These are acknowledged by inserting the citation. Implementing a basic firewall for security. 2 Overview • Introduction • Radar functions • Antennas basics • Radar range equation • System parameters • Electromagnetic waves • Scattering mechanisms • Radar cross section and stealth • Sample radar systems. INTRODUCTION TO BASIC RADAR Figure 1-1 contains the basic terms that you need to of an object with respect to the antenna, giving the operator data on range, bearing, and altitude. (Marconi antenna) When used at low frequencies the field should be vertically polarized and antenna could be a tower. Stutzman and G. , you have to know where the repeater is located by city name - Advanced lookup requires a subscription (e. Antenna Basics White Paper This white paper describes the basic functionality of antennas. Strickling, Assistant Secretary for Communications and Information October 2012. Antenna Theory: A Review CONSTANTINE A. For a weather radar, the wavelength of the signal is ~ 10cm • Antenna - the main purpose of the antenna (also called the "dish") is to focus the transmitted power into a small beam and also to listen and collect the returned signal. The basics of Command & Control and of radio procedures. Today I will highlight the information I found while discovering a great deal of information about antennas. Small Loop Antenna A precision VLF antenna coil. But don't be misled - just because they are easy to make doesn't mean they don't work well. A ground plane antenna is essentially one half of a dipole mounted vertically. ppt (PowerPoint) format. Antennas and Propagation Slide 2 Chapter 3 Introduction Purpose Introduce standard terms and definitions for antennas Need a common language to specify performance Two types of parameters 1. The sum and difference of the signals from the outer antennas are normalized by the sense antenna and they result in the creation of a cardioid (or heart-shaped) pattern. In cellular base stations, there are two basic antenna types currently in use (figure 1):. Antennas come in all shapes and sizes, depending on the frequency the antenna is trying to receive. 3 gives some examples of fixed beamforming techniques. The difference between basic and applied research is that Basic Research tries to expand the already existing scientific knowledge base. The student will know the following terms: pulse width, pulse repetition frequency, carrier frequency, peak power, average power, and duty cycle. ] In the following graph,. It is the job of the antenna to radiate the electrical energy from your transmitter as electromagnetic radio wave. Kraus-38096 book October 10, 2001 13:3 CHAPTER 2 Antenna Basics 2-1 INTRODUCTION Welcome to the wonderful world of antennas, its language and culture; to the aperture family (effective and scattering), the lobe family (main, side, back, and grating); to beamwidths, directivity, and gain. The horn antenna is an example of an aperture antenna that provides a smooth transition from a waveguide to a larger aperture that couples more effectively into space. It offers a 2. Some routers will have antennas built in, and sometimes the routers will have a choice of antenna you can attach to the router. 2:1 (or simply 1. In cellular base stations, there are two basic antenna types currently in use (figure 1):. Wavelength/Frequency - in radio frequency (RF) communications, there is a definite relationship between antenna length and the wavelength corresponding to the transmitter frequency. While antennas are widespread in the radiowave and microwave regimes they are basically unexplored at optical frequencies. There are many specific types of antennas, but three basic types are used most of the time, and will be useful in building a wireless network. The radiation pattern is a “reception pattern” as well, since it also describes the receiving. The student will know the block. The antenna lead from the tuner "longwire" terminal to the antenna should parallel and be reasonably close to the outside ground lead, if possible. View and Download PowerPoint Presentations on Microstrip Patch Antenna PPT. The earth ground below the antenna, a conducting surface a. Types of Smart Antennas Switched lobe (SL): ( also called “switched beam” ) • simplest technique • comprises only a basic switching function between separate directive antennas or predefined beams of an array 8. It mentions functions and operation of lens antenna. Determine the antenna's resistance. About Pegasystems Pega is the leader in cloud software for customer engagement and operational excellence. 2 cm) You can "curl up" such an antenna and make a helical antenna. Horn antennas are used directly as radiators aboard satellites to illuminate comparatively large areas of the earth, and they are also widely used as primary feeds for reflector. It is the job of the. This article covers basic antenna theory. Dellinger CONTENTS Page I. 8 MB) 2004 MUD Powerpoint (2. Most antennas are resonant devices, which operate efficiently over a relatively narrow frequency band. A perfect introduction for beginners. With R in = R out = 50 Ω, it follows that V in = 1/2 V 0 and thus K = 2 / l eff It is evident that for field-strength measurementseither the effective antenna length or the antenna factor of the test antenna must be exactly known. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. This page covers basics of lens antenna. offers multi-decoding over the full displayed passband. antennas can be fixed in a specific location and directed towards the receiver (or transmitter) such as in microwave communications, or it can require rotation facilities as in radars. Antenna & Wave Propagation. McGraw-Hill, 2002, 938 pages. 3 Linear array synthesis (Fourier series, woodward-lanson sampling) 4. It is usually used with a radio transmitter or radio receiver. Unit 3, Microstrip and Array Antennas, introduces microstrip technology. Use both quarter-wave impedance transformers and single or double stub tuners. 4 LW Where: Length (L) and Width (W) are in cm 3. A mobile device antenna must be small and lightweight enough to fit in the limited amount of space allotted for it in a smartphone’s design. One of the most commonly used antennas are wire antennas. The antenna is the most visible part of the satellite communicationon system. The student will know the following terms: pulse width, pulse repetition frequency, carrier frequency, peak power, average power, and duty cycle. Many new applications will only be possible with antennas that consume less power in a lower pro-file than traditional mechanically steered dish. Antenna, component of radio, television, and radar systems that directs incoming and outgoing radio waves. PowerPoint Presentation. Wire Antennas come in different shapes and sizes like straight wire (Dipole), Loop and Helix. Antennas and Propagation Slide 2 Chapter 4 4. Wire Antennas come in different shapes and sizes like straight wire (Dipole), Loop and Helix. Courses Available. There, it can be monitored and used to control a process at the remote site. Kolundzija School of Electrical Engineering, University of Belgrade, 11120 Belgrade, Yugoslavia. (Antenna) Receiver (Rx) Detector. Overview of Antennas Muhammad Dawood Research Assistant Professor The Information and Telecommunication Technology Center. Antenna Modeling With 4NEC2 Presented to HOTARC By Craig Weixelbaum May 22, 2014 Basic Modeling Approach using 4Nec2 The goals of this 30 minute presentation on 4Nec2: 1. An active antenna, also known as a phased array antenna, is defined by the Phased Array Antenna Handbook as consisting “of multiple stationary elements, which are fed coherently and use variable phase or time delay control at each element to scan a beam to given angles in space. Microwave Radio Antenna Link Fundamentals [SP6105] Starting with microwave basics of transmission, the course steps through the installation of a microwave antenna. In its most simplified form, a DAS has two basic components: 1 - Signal Source. •The antenna deployment and solar panel deployment are programmed as an automatic sequence task once the satellite is ejected from its launch vehicle. 4 Low sidelobe synthesis (Dolph-Chebyshev, Taylor). Application of antenna in telecomn is known to all. An antenna connected to a transmitter is the device that releases RF energy (in the form of an electromagnetic field) to be sent to a distant receiver. Literally, "free. Welcome! This is one of over 2,200 courses on OCW. Candi-date antennas examined include phased arrays, lenses, and optical reflector systems. An antenna array is a set of N spatially separated antennas. Most multi-antenna signaling schemes, in fact, realize both spatial-multiplexing and diversity gain. Outline What is an Antenna? Likewise, if a linear (wire) antenna develops a certain voltage across its terminals when it is excited by a known field intensity from a passing wave, an effective length or height (for. reliable, confirmable QSOs. A framework for characteriz-ing the trade-off between spatial-multiplexing and diversity gains in flat-fading MIMO chan-nels was proposed in [6]. Bloodborne Pathogens. It is on water. In order to take these effects into consideration, the whole IoT product must be included in the antenna simulations. Microwave Engineering. When the energy strikes an object a small amount is reflected back to the antenna. Radiation or antenna pattern describes the relative strength of the radiated field in various directions from the antenna at a constant distance. The Gain of an antenna with losses is given by: 2. You are welcome to visit a website that goes along with a course at the University of Houston on microstrip antennas (PowerPoint viewgraphs from the course may be found there, along with the viewgraphs from this short course). These are acknowledged by inserting the citation. produces a. helped people grasp the concepts better than they would through “death by PowerPoint. The antenna transmitted the EM pulse towards the area to be imaged and collects returned echoes. Pattern Diversity: This type of diversity uses antennas with different patterns. Volleyball provides a great workout, as well as a chance to participate in a. [?], and Rao [?]. 4 LW Where: Length (L) and Width (W) are in cm 3. Fundamental Parameters of Antennas Ranga Rodrigo May 12, 2010 Lecture notes are fully based on books, Balanis [?] Kraus et al. A fundamental list of antenna theory concepts, an antenna basics menu is given here. ANTENNA BASIC CONCEPTS. Free space loss, ideal isotropic antenna •P t = signal power at transmitting antenna •P r = signal power at receiving antenna •λ = carrier wavelength •d = propagation distance between antennas •c = speed of light (≈ 3 x 108 m/s) where d and λ are in the same units (e. dielectric lens antenna and metal plate lens antenna. Nanotechnology offers great potential for benefit to humankind, and also brings severe dangers. Basic Guidance on Antennas Used With Part 15 Intentional Radiators – Highlights of KDB Publication 353028 Office of Engineering and Technology. Microwave Installation & Alignment Training. Basic Vertical (Monopole) Radiation Resistance Radiation Resistance (Rrad) is that portion of the antenna input resistance that radiates power. Shields and ground. The tag and reader antennas are inductances mutually coupled by the magnetic field, similarly to a voltage transformer (see Figure 1). 2 Signal Propagation All signals radiated from any kind of antenna share the same basic characteristics. The RFID reader we are going to use is MFRC522 reader module and it communicates with the Arduino through SPI protocol. The calculations for an antenna might be complex, a simple dipole antenna however is pretty easy to design. Some most commonly-used basic electrical symbols in schematic diagrams are shown below: Let's take a look at how to use the basic electrical symbols to draw a schematic diagram of the circuit and its components. Whether they are small compared to the extremely long wave-lengths used at the low-est radio frequencies, or intended to save. Some basic references are provided at the end of these viewgraphs. 2 SOPS keeps GPS flying! - YouTube. Antenna Basics VHF, SSB, AM/FM, AIS, Cellular • Any Conducting Material Will Work as an Antenna on Any Frequency • Only Reason for Specific Antennas Is to Control Radiation Pattern (n/a for SSB on most vessels) - Total Radiated Power Is Same • Focused Radiation Pattern Results in Antenna "Gain" (n/a for SSB on most vessels). Identify possible CERT roles in traffic and crowd management Explain CERT Basic Training concepts that apply to traffic and crowd management Demonstrate standard hand signals for directing traffic and crowds Describe skills for effective verbal communication with the public. Some most commonly-used basic electrical symbols in schematic diagrams are shown below: Let's take a look at how to use the basic electrical symbols to draw a schematic diagram of the circuit and its components. The first step in modeling an antenna is to determine what frequency range it will cover. [?], and Rao [?]. Antenna & Wave Propagation. Multipath fading and delay spread significantly reduce the capacity of a cellular network. Change all instances of MCRP 3-40. The line of sight distance is that exact distance at which both the sender and receiver antenna are in sight of each other. " What exactly does that mean? Well, you need to know what a fractal is. Biconical Antennas have dipole like characteristics (e. Download Antenna Theory: Analysis and Design By Constantine A. 3C ANTENNA HANDBOOK 1. Loop Antenna Design Square Loop Antenna. The difference between basic and applied research is that Basic Research tries to expand the already existing scientific knowledge base. This will both address the challenges and leverage the advantages of small cell deployment. Antenna Modeling With 4NEC2 Presented to HOTARC By Craig Weixelbaum May 22, 2014 Basic Modeling Approach using 4Nec2 The goals of this 30 minute presentation on 4Nec2: 1. Fox Hunt teaches antenna basics, tactics directional antennas, and a variety of search techniques. 6 Radiation Resistance The antenna is connected to a T. such as beam efficiency, sidelobe level, and antenna beam footprint size; and conception of an antenna/feed system that could meet the design goals. All the typical issues that arise in an installation are covered, from the selection of one type of antenna over another, the actual routine of installation, hoisting and aligning. Each antenna in the various cells operate on the same RF that are assigned. It is usually used with a radio transmitter or radio receiver. However, for now we will assume it does. Common gains: 2 to 30 db over isotropic. The approach applied in this book is similar to the. Metric ruler. This type of antenna works by using a diversity effect at the wireless system's transceiver. The wireless communication is done in the form of waves. Fundamental Parameters of Antennas Ranga Rodrigo May 12, 2010 Lecture notes are fully based on books, Balanis [?] Kraus et al. We start the series by reviewing some basic RF concepts: Decibels (dB), Antenna Gain, Free-space RF Propagation, RF Attenuation, Noise, Signal-to-Noise Ratio (SNR), Receive Sensitivity and Link Budget Analysis. BloodbornePPT. The loop antenna shown in the below diagram is designed from a conducting wire in the given shape. Review Article Dielectric Resonator Antennas: Basic Concepts, Design Guidelines, and Recent Developments at Millimeter-Wave Frequencies S. Digital beamforming antennas - An introduction Article (PDF Available) in Microwave Journal 30(1):107 · December 1986 with 7,472 Reads How we measure 'reads'. The basic concept of spread spectrum technique is that the information waveform with small bandwidth is converted by modulating it with a large-bandwidth waveform (Hofmann-Wellenhof et al. Laboratory Division. The text, Antenna Theory and Design, W. O'Donnell outlines antenna basics including field regions, electromagnetic field equations, polarization antenna directivity and gain and antenna input impedance. Optical antennas present proved and potential advantages in the detection of light showing polarization dependence, tuneability, and a potential rapid time response. Management. Example: 160 m 50 ft vertical = 34. Antennas and Propagation Slide 2 Chapter 3 Introduction Purpose Introduce standard terms and definitions for antennas Need a common language to specify performance Two types of parameters 1. Unit 1, Basic Antenna Measurements, introduces two basic antenna types and allows the student to measure a number of important antenna characteristics. Determine the antenna's resistance. Bloodborne Pathogens. Generally people don't think of radio-frequency radiation in terms of discrete particles (oscillating electrons and photons) -they typically use the wave model instead, as it's much easier to use. The antenna transmits and receives the modulated carrier signal at the radio frequency (RF) portion of the electromagnetic spectrum.
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