Dielectric And Dielectric Loaded Antennas
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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.
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 Resonator Antennas
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Author : Zhijiao Chen
language : en
Publisher: John Wiley & Sons
Release Date : 2023-12-19
Dielectric Resonator Antennas written by Zhijiao Chen 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 2023-12-19 with Technology & Engineering categories.
Dielectric Resonator Antennas A detailed guide to dielectric-based techniques for antenna array design and construction Dielectric designs, which transmit electricity without conducting it, have in recent decades been increasingly incorporated into antenna arrays. The resulting Dielectric Resonator Antennas (DRAs) provide significant benefits over metal antennas, avoiding conduction loss and increasing efficiency. Dielectric elements can also be incorporated into metal antennas to improve performance. Dielectric Resonator Antennas provides an introduction to dielectric-based techniques for manufacturing antenna arrays. It supplies guidelines for identifying dielectric antenna designs (as opposed to metal ones), describes recent developments in dielectric antenna technology, and points toward potential areas of future growth and development. Readers will also find: Cutting-edge DRA applications in microwave and millimeter-wave communications Detailed discussion of array types including wideband, high-gain, high efficiency, and more Instructions for fabricating dielectric antenna arrays and assessing tolerance levels Dielectric Resonator Antennas is ideal for researchers and students in electrical engineering, as well as for engineers and others working in wireless communications.
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.
Dielectric Resonator Antennas
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Author : Biswajeet Mukherjee
language : en
Publisher: Artech House
Release Date : 2021-11-30
Dielectric Resonator Antennas written by Biswajeet Mukherjee and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-30 with Technology & Engineering categories.
This book focuses on the understanding of the Cylindrical Dielectric Resonator Antennas (CDRA). The book introduces the fundamentals of DRA, CDRA, identifying the modes in a CDRA, excitation techniques and recent advancements pertaining to the research of the CDRAs. The latest trends in the field are discussed, including wide bandwidth of operation, high gain, modal stability, mode and impedance matching techniques, Circularly Polarized CDRAs, beam forming and MIMO applications for modern wireless systems. The experimental validation, testing, fabrication methods and machining to achieve cylindrical and its reformed shapes are also presented.
Dielectric Resonator Antennas
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Author : Kwai Man Luk
language : en
Publisher: Research Studies Press Limited
Release Date : 2003
Dielectric Resonator Antennas written by Kwai Man Luk and has been published by Research Studies Press Limited this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Antennas categories.
The use of dielectric resonator as a resonant antenna was proposed in 1983. Due to the absence of metallic loss, the dielectric resonator antenna (DRA) is highly efficient when operated at millimetre wave frequencies. With the use of high dielectric constant material, the DRA can also be used as a small and low profile antenna operated at low microwave frequencies. Low cost dielectric materials are now easily available commercially, encouraging more antenna engineers to design communication systems with DRAs.
Aperture Excited Dielectric Antennas
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Author :
language : en
Publisher:
Release Date : 1974
Aperture Excited Dielectric Antennas written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Antennas (Electronics) categories.
Dielectric Resonator Antenna Handbook
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Author : Aldo Petosa
language : en
Publisher: Artech House Publishers
Release Date : 2007
Dielectric Resonator Antenna Handbook written by Aldo Petosa and has been published by Artech House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Technology & Engineering categories.
Today, more and more antenna engineers are viewing the Dielectric Resonator Antenna (DRA) as a preferable alternative to conventional low-gain designs because of several attractive features, including high radiation, light weight, small size and low profile. This practical resource presents complete, up-to-date details on DRAs in a single volume. The book provides professionals with clear guidance on the mode of operation and radiation behavior of DRAs, the main methods of excitation, and the major advances in DRA technology. This hands-on reference equips engineers with simple equations and graphs that help them rapidly design DRAs, without the need for complex analytical or numerical calculations. Numerous design examples are included to give practitioners a sense of the versatility that DRAs afford.
Dielectric Resonator Antennas
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Author : Zhijiao Chen
language : en
Publisher: John Wiley & Sons
Release Date : 2023-11-30
Dielectric Resonator Antennas written by Zhijiao Chen 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 2023-11-30 with Technology & Engineering categories.
Dielectric Resonator Antennas A detailed guide to dielectric-based techniques for antenna array design and construction Dielectric designs, which transmit electricity without conducting it, have in recent decades been increasingly incorporated into antenna arrays. The resulting Dielectric Resonator Antennas (DRAs) provide significant benefits over metal antennas, avoiding conduction loss and increasing efficiency. Dielectric elements can also be incorporated into metal antennas to improve performance. Dielectric Resonator Antennas provides an introduction to dielectric-based techniques for manufacturing antenna arrays. It supplies guidelines for identifying dielectric antenna designs (as opposed to metal ones), describes recent developments in dielectric antenna technology, and points toward potential areas of future growth and development. Readers will also find: Cutting-edge DRA applications in microwave and millimeter-wave communications Detailed discussion of array types including wideband, high-gain, high efficiency, and more Instructions for fabricating dielectric antenna arrays and assessing tolerance levels Dielectric Resonator Antennas is ideal for researchers and students in electrical engineering, as well as for engineers and others working in wireless communications.
Frequency And Transient Characteristics Of Mmic Transmission Lines Circuits And Antennas
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Author : Constantine A. Balanis
language : en
Publisher: Wexford College Press
Release Date : 2008
Frequency And Transient Characteristics Of Mmic Transmission Lines Circuits And Antennas written by Constantine A. Balanis and has been published by Wexford College Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Microwave communication systems categories.
This resource for those interested in electrical engineering addresses such topics as analysis and design of 2-D planar transmission lines and circuits and dielectric-loaded aperture antennas and ferrite-loaded antennas. (Technology & Industrial Arts)