Coupling Between A Center Driven Dipole And Parasitic Elements Of Different Lengths
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Coupling Between A Center Driven Dipole And Parasitic Elements Of Different Lengths
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Author : Charles J. Drane
language : en
Publisher:
Release Date : 1974
Coupling Between A Center Driven Dipole And Parasitic Elements Of Different Lengths written by Charles J. Drane and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Antenna arrays categories.
Formulas are derived as approximate representations for the current and charge distributions along the elements of a linear array of parallel, nonstaggered cylindrical wires of generally unequal length. One element is a center-driven dipole electromagnetically coupled to the other elements, which are parasitic. These formulas are derived in extension of the well-known King-Wu three-term theory. As such, they represent an improvement--particularly for the charge distributions, which often very so rapidly near the driving point of the driven element that they cannot be handled by the simpler trigonometric terms of the three-term theory. As in the three-term theory, there are only three unknown coefficients to be evaluated for each antenna element. (Modified author abstract).
An Analysis And Design Optimization Of The Log Periodic Dipole Antenna
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Author : Charles J. Drane
language : en
Publisher:
Release Date : 1976
An Analysis And Design Optimization Of The Log Periodic Dipole Antenna written by Charles J. Drane and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Antennas, Dipole categories.
Approximate representations for current and charge distributions along each dipole of a log-periodic dipole antenna are derived. The special mathematical forms assumed by these representations are chosen to be particularly compatible with the set of integral equations that the representations must satisfy. An attractive attributes is their ability to handle the rapid variations in charge that often exist near the driving points and ends of the dipole elements. This ability to accurately predict how charges are distributed can be essential to precise estimates of the maximum voltage gradient on the antenna, and is critically important when the antenna is to be designed for high-power applications.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1975
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Aeronautics categories.
Catalogs Of The Scripps Institution Of Oceanography Library
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Author : Scripps Institution of Oceanography. Library
language : en
Publisher:
Release Date : 1980
Catalogs Of The Scripps Institution Of Oceanography Library written by Scripps Institution of Oceanography. Library and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Marine biology categories.
Government Reports Index
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Author :
language : en
Publisher:
Release Date : 1975
Government Reports Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Government publications categories.
Groundwater
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Author : Modreck Gomo
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-05-22
Groundwater written by Modreck Gomo and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-22 with Science categories.
This book covers aspects of groundwater resource characterisation and management. The inherent heterogeneous and isotropic nature of aquifers coupled with the unpredictable effects of climate change calls for continuous improvement and understanding of hydrogeology site characterisation techniques in theory and application to better understand and manage groundwater. We believe that this book will be useful for various professionals involved in groundwater-related work to improve the theoretical and practical understanding of hydrogeology site characterisation techniques and groundwater resource management skills.
Switched Parasitic Antennas For Cellular Communications
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Author : David V. Thiel
language : en
Publisher: Artech House
Release Date : 2002
Switched Parasitic Antennas For Cellular Communications written by David V. Thiel and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Technology & Engineering categories.
"Presenting information typically not found in other books, the authors explore the numerous advantages of these antennas - including high-speed signal acquisition, fixed input impedance, low loss, and small footprint. Professionals find practical design examples, strategies, and optimization methods for designing economical switched parasitic antennas for applications such as direction finding and multibeam communications systems. Cutting-edge technologies and applications such as MEMs RF switches are also discussed."--Jacket.
Official Gazette Of The United States Patent And Trademark Office
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Author : United States. Patent and Trademark Office
language : en
Publisher:
Release Date : 2000
Official Gazette Of The United States Patent And Trademark Office written by United States. Patent and Trademark Office and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Patents categories.
The Theory Of Linear Antennas
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Author : Ronold Wyeth Percival King
language : en
Publisher:
Release Date : 1956
The Theory Of Linear Antennas written by Ronold Wyeth Percival King and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with Technology & Engineering categories.
Mutual Coupling Between Antennas
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Author : Trevor S. Bird
language : en
Publisher: John Wiley & Sons
Release Date : 2021-06-28
Mutual Coupling Between Antennas written by Trevor S. Bird 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 2021-06-28 with Technology & Engineering categories.
Mutual Coupling Between Antennas A guide to mutual coupling between various types of antennas in arrays such as wires, apertures and microstrip patches or antennas co-sited on platforms Mutual Coupling Between Antennas explores the theoretical underpinnings of mutual coupling, offers an up-to-date description of the physical effects of mutual coupling for a variety of antennas, and contains techniques for analysing and assessing its effects. The book puts the topic in historical context, presents an integral equation approach, includes the current techniques, measurement methods, and discusses the most recent advances in the field. With contributions from noted experts on the topic, the book reviews practical aspects of mutual coupling and examines applications that clearly demonstrate where the performance is impacted both positively and negatively. Mutual Coupling Between Antennas contains information on how mutual coupling can be analysed with a wide range of methods from direct computer software using discrete methods, to integral equations and Greens function methods as well as approximate asymptotic methods. This important text: Provides a theoretical background for understanding mutual coupling between various types of antennas Describes the interaction that occurs between antennas, both planned and unplanned Explores a key aspect of arrays in any wireless, radar or sensing system operating at radio frequencies Offers a groundbreaking book on antenna mutual coupling Written for antenna engineers, technical specialists, researchers and students, Mutual Coupling Between Antennas is the first book to examine mutual coupling between various types of antennas including wires, horns, microstrip patches, MIMO antennas, co-sited antennas and arrays in planar or conformal configurations.