A Dielectric Loaded Leaky Wave Antenna
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A Dielectric Loaded Leaky Wave Antenna
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Author : Jorgen Aasted
language : en
Publisher:
Release Date : 1961
A Dielectric Loaded Leaky Wave Antenna written by Jorgen Aasted and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Leaky-wave antennas categories.
The design and the measured performance are described of a flat, leaky-wave antenna in which the inductive, leaky surface is backed with a slab of dielectric. The analysis is based on a transverse resonance analysis which determines the physical dimensions of the antenna for a certain specified aperture distribution. An antenna was built to compare the theoretical behavior with the measured performance. Two ways of forming the dielectric to the antenna were tested. When the dielectric was molded in place the radiation pattern agreed very well with the theoretically predicted pattern, but high losses in the casting resin gave a lower gain for the antenna than anticipated. For a machined piece of dielectric, the radiation pattern was not as close to the predicted pattern as for the molded sample, but the gain was close to the predicted value. The antenna consists of a 28-by-18-inch through filled with a dielectric material over which a sheet of parallel wires is strung. At the design frequency, 4.75 gc, the antenna radiates a pencil beam 9.4 by 8.3 degrees wide at an angle of 54 degrees measured from the normal to the inductive surface. The beam can be scanned from approximately 75 degrees down to 12 degrees from the normal to the aperture by changing the frequency from 5.25 gc to 4.20 gc. (Author).
Dielectric And Dielectric Loaded Antennas
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Author : Rajeswari Chatterjee
language : en
Publisher: John Wiley & Sons
Release Date : 1985-11-07
Dielectric And Dielectric Loaded Antennas written by Rajeswari Chatterjee and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-11-07 with Technology & Engineering categories.
A comprehensive survey of research on dielectric and dielectric-loaded antennas, providing a critical review of work carried out over the past thirty-five years. Covers a wide range of antenna shapes, types, and practical applications at microwave and millimetre wave frequencies.
Leaky Waves In Electromagnetics
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Author :
language : en
Publisher:
Release Date : 2015-09-30
Leaky Waves In Electromagnetics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-30 with Technology & Engineering categories.
Antenna Theory And Practice
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Author : Rajeswari Chatterjee
language : en
Publisher: New Age International
Release Date : 1996
Antenna Theory And Practice written by Rajeswari Chatterjee and has been published by New Age International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Antennas (Electronics) categories.
This Book Has Been Designed For Both The Undergraduate And Postgraduate In Electronic Engineering, Electrical Communication Engineering And Electrical Engineering, And For The Postgraduate In Physics Specialising In Electronics. It Is A Compact And Comprehensive Text And It Stresses The Basic Principles Of Antenna Theory And Practice. Starting With Electromagnetics And The Theory Of Radiation Which Forms The Basis Of Antenna Theory, It Treats In Detail Different Types Of Antennas Like The Linear Antenna, The Cylindrical Antenna, The Biconical Antenna, The Loop Antenna, The Helical Antenna, Slot And Microstrip Antennas, Horn Antennas, Reflector Antennas, Lens Antennas, Leaky Wave And Surface-Wave Antennas Including Dielectric And Dielectric Loaded Antennas, Wide Band Antennas And Some Modern Special Types Of Antennas.There Are Also Chapters On Antenna Synthesis, Antenna Practice, Antenna Measurements And Electromagnetic Wave Propagation. The Detailed Coverage Of Electromagnetic Theory Enables The Student To Understand The Theoretical Aspects With Comparative Ease. The Chapters On Antenna Synthesis, Antenna Practice And Antenna Measurements Are Useful For The Practical Antenna Engineer.The Problems At The End Of Chapters, Tables And Numerous Illustrations Add To The Value Of The Text. In This Second Edition A New Chapter On Antenna Impedance And Some Solved Problems Have Been Added. The Book Presupposes Only The Knowledge Of Mathematics Which A Student Of Undergraduate Engineering Or Undergraduate Physics Has Required.
Millimeter Wave Antennas Configurations And Applications
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Author : Jaco du Preez
language : en
Publisher: Springer
Release Date : 2016-06-20
Millimeter Wave Antennas Configurations And Applications written by Jaco du Preez and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-20 with Technology & Engineering categories.
This book comprehensively reviews the state of the art in millimeter-wave antennas, traces important recent developments and provides information on a wide range of antenna configurations and applications. While fundamental theoretical aspects are discussed whenever necessary, the book primarily focuses on design principles and concepts, manufacture, measurement techniques, and practical results. Each of the various antenna types scalable to millimeter-wave dimensions is considered individually, with coverage of leaky-wave and surface-wave antennas, printed antennas, integrated antennas, and reflector and lens systems. The final two chapters address the subject from a systems perspective, providing an overview of supporting circuitry and examining in detail diverse millimeter-wave applications, including high-speed wireless communications, radio astronomy, and radar. The vast amount of information now available on millimeter-wave systems can be daunting for researchers and designers entering the field. This book offers readers essential guidance, helping them to gain a thorough understanding based on the most recent research findings and serving as a sound basis for informed decision-making.
Aperture Antennas For Millimeter And Sub Millimeter Wave Applications
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Author : Artem Boriskin
language : en
Publisher: Springer
Release Date : 2017-09-05
Aperture Antennas For Millimeter And Sub Millimeter Wave Applications written by Artem Boriskin and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-05 with Technology & Engineering categories.
This book presents the technology of millimetre waves and Terahertz (THz) antennas. It highlights the importance of moderate and high-gain aperture antennas as key devices for establishing point-to-point and point-to-multipoint radio links for far-field and near-field applications, such as high data-rate communications, intelligent transport, security imaging, exploration and surveillance systems. The book provides a comprehensive overview of the key antenna technologies developed for the mm wave and THz domains, including established ones – such as integrated lens antennas, advanced 2D and 3D horn antennas, transmit and reflect arrays, and Fabry-Perot antennas – as well as emerging metasurface antennas for near-field and far-field applications. It describes the pros and cons of each antenna technology in comparison with other available solutions, a discussion supplemented by practical examples illustrating the step-by-step implementation procedures for each antenna type. The measurement techniques available at these frequency ranges are also presented to close the loop of the antenna development cycle. In closing, the book outlines future trends in various antenna technologies, paving the way for further developments. Presenting content originating from the five-year ESF research networking program ‘Newfocus’ and co-authored by the most active and highly cited research groups in the domain of mm- and sub-mm-wave antenna technologies, the book offers a valuable guide for researchers and engineers in both industry and academia.
Telecommunication Engineering Vol Ii
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Author : A Vaidyanathan
language : en
Publisher: New Age International
Release Date : 2000
Telecommunication Engineering Vol Ii written by A Vaidyanathan and has been published by New Age International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Telecommunication systems categories.
This Volume Presents The Basic Details Of Digital Integrated Circuits, The Processing Of Signals For Digital Communication, The Working Principles Of Electronic Digital Telephone Exchanges, Fibre Optic Communications And Radio Systems Including Those Working On Microwaves. It Further Describes The Working Principles Of Radar, Telephoto And Tv Systems Including Colour Tv. It Highlights Also The Principles Of Satellite Communication And The Launching Of Satellite Repeaters. In Addition The Book Explains The Working Principles Of Cellular Radio Mobile Telephone System And Paging Services. Several Worked-Out Examples And Model Questions Have Also Been Included For Self-Study.
Compact Slot Array Antennas For Wireless Communications
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Author : Alan J. Sangster
language : en
Publisher: Springer
Release Date : 2018-11-11
Compact Slot Array Antennas For Wireless Communications written by Alan J. Sangster and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-11 with Technology & Engineering categories.
This book describes and provides design guidelines for antennas that achieve compactness by using the slot radiator as the fundamental building block within a periodic array, rather than a phased array. It provides the basic electromagnetic tools required to design and analyse these novel antennas, with sample calculations where relevant. The book presents a focused introduction and valuable insights into the relevant antenna technology, together with an overview of the main directions in the evolving technology of compact planar arrays. While the book discusses the historical evolution of compact array antennas, its main focus is on summarising the extensive body of literature on compact antennas. With regard to the now ubiquitous slot radiator, it seeks to demonstrate how, despite significant antenna size reductions that at times even seem to defy the laws of physics, desirable radiation pattern properties can be preserved. This is supported by an examination of recent advances in frequency selective surfaces and in metamaterials, which can, if handled correctly, be used to facilitate physics-defying designs. The book offers a valuable source of information for communication systems and antenna design engineers, especially thanks to its overview of trends in compact planar arrays, yet will also be of interest to students and researchers, as it provides a focused introduction and insights into this highly relevant antenna technology.
Rf And Microwave Passive And Active Technologies
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Author : Mike Golio
language : en
Publisher: CRC Press
Release Date : 2018-10-03
Rf And Microwave Passive And Active Technologies written by Mike Golio and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-03 with Technology & Engineering categories.
In the high frequency world, the passive technologies required to realize RF and microwave functionality present distinctive challenges. SAW filters, dielectric resonators, MEMS, and waveguide do not have counterparts in the low frequency or digital environment. Even when conventional lumped components can be used in high frequency applications, their behavior does not resemble that observed at lower frequencies. RF and Microwave Passive and Active Technologies provides detailed information about a wide range of component technologies used in modern RF and microwave systems. Updated chapters include new material on such technologies as MEMS, device packaging, surface acoustic wave (SAW) filters, bipolar junction and heterojunction transistors, and high mobility electron transistors (HMETs). The book also features a completely rewritten section on wide bandgap transistors.
The Rf And Microwave Handbook 3 Volume Set
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Author : Mike Golio
language : en
Publisher: CRC Press
Release Date : 2018-10-08
The Rf And Microwave Handbook 3 Volume Set written by Mike Golio and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-08 with Technology & Engineering categories.
By 1990 the wireless revolution had begun. In late 2000, Mike Golio gave the world a significant tool to use in this revolution: The RF and Microwave Handbook. Since then, wireless technology spread across the globe with unprecedented speed, fueled by 3G and 4G mobile technology and the proliferation of wireless LANs. Updated to reflect this tremendous growth, the second edition of this widely embraced, bestselling handbook divides its coverage conveniently into a set of three books, each focused on a particular aspect of the technology. Six new chapters cover WiMAX, broadband cable, bit error ratio (BER) testing, high-power PAs (power amplifiers), heterojunction bipolar transistors (HBTs), as well as an overview of microwave engineering. Over 100 contributors, with diverse backgrounds in academic, industrial, government, manufacturing, design, and research reflect the breadth and depth of the field. This eclectic mix of contributors ensures that the coverage balances fundamental technical issues with the important business and marketing constraints that define commercial RF and microwave engineering. Focused chapters filled with formulas, charts, graphs, diagrams, and tables make the information easy to locate and apply to practical cases. The new format, three tightly focused volumes, provides not only increased information but also ease of use. You can find the information you need quickly, without wading through material you don’t immediately need, giving you access to the caliber of data you have come to expect in a much more user-friendly format.