Cylindrical Antennas And Arrays


Cylindrical Antennas And Arrays
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Cylindrical Antennas And Arrays


Cylindrical Antennas And Arrays
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Author : Ronold W. P. King
language : en
Publisher: Cambridge University Press
Release Date : 2002-10-10

Cylindrical Antennas And Arrays written by Ronold W. P. King and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-10-10 with Science categories.


This book explains how to design, analyse and test cylindrical antenna arrays from a practical engineering standpoint. Written by three of the leading engineers in the field, this book is destined to become established as the basic reference in the field for many years to come.



Arrays Of Cylindrical Dipoles


Arrays Of Cylindrical Dipoles
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Author : R. W. P. King
language : en
Publisher: Cambridge University Press
Release Date : 2009-06-25

Arrays Of Cylindrical Dipoles written by R. W. P. King and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-06-25 with Science categories.


In this book, first published in 1968, King and his co-authors develop a theory of the behaviour of arrays of rod-shaped antennas such as are used to achieve directive transmission and reception of radio waves for use in communication between points on the earth, between the earth and a space vehicle, or in radio astronomy. They use quantitative analysis of arrays of practical types and wide range of lengths over a wide frequency band, which makes possible the design of new arrays with desired characteristics. After the introductory chapter reviewing the foundations and conventions antenna theory, each subsequent chapter takes into account the authors own particular theories on isolated antennas, two-coupled antennas, N-element circular array, N-element curtain array of identical elements, to arrays containing elements of different lengths and finally to planar and three-dimensional arrays. The final chapter is concerned with problems of measurement and the correlation of theory with experiment.



Low Profile Conformal Antenna Arrays On High Impedance Substrate


Low Profile Conformal Antenna Arrays On High Impedance Substrate
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Author : Hema Singh
language : en
Publisher: Springer
Release Date : 2015-09-28

Low Profile Conformal Antenna Arrays On High Impedance Substrate written by Hema Singh and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-28 with Technology & Engineering categories.


This book presents electromagnetic (EM) design and analysis of dipole antenna array over high impedance substrate (HIS). HIS is a preferred substrate for low-profile antenna design, owing to its unique boundary conditions. Such substrates permit radiating elements to be printed on them without any disturbance in the radiation characteristics. Moreover HIS provides improved impedance matching, enhanced bandwidth, and increased broadside directivity owing to total reflection from the reactive surface and high input impedance. This book considers different configurations of HIS for array design on planar and non-planar high-impedance surfaces. Results are presented for cylindrical dipole, printed dipole, and folded dipole over single- and double-layered square-patch-based HIS and dogbone-based HIS. The performance of antenna arrays is analyzed in terms of performance parameters such as return loss and radiation pattern. The design presented shows acceptable return loss and mainlobe gain of radiation pattern. This book provides an insight to EM design and analysis of conformal arrays. This book serves as an introduction for beginners in the design and analysis of HIS-based antenna arrays. It includes pictorial description of both planar and non-planar array design and the detailed discussion of the performance analysis of HIS-based planar and non-planar antenna array. It will prove useful to researchers and professionals, alike.



Em Design And Analysis Of Dipole Arrays On Non Planar Dielectric Substrate


Em Design And Analysis Of Dipole Arrays On Non Planar Dielectric Substrate
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Author : Hema Singh
language : en
Publisher: Springer
Release Date : 2015-10-12

Em Design And Analysis Of Dipole Arrays On Non Planar Dielectric Substrate written by Hema Singh and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-12 with Technology & Engineering categories.


This book presents a simple and systematic description of EM design of antenna arrays. Printed dipole antennas are known to be simple yet more efficient than wire antennas. The dielectric substrate and the presence of ground plane affect the antenna performance and the resonant frequency is shifted. This book includes the EM design and performance analysis of printed dipole arrays on planar and cylindrical substrates. The antenna element is taken as half-wave centre-fed dipole. The substrate is taken as low-loss dielectric. The effect of substrate material, ground plane, and the curvature effect is discussed. Results are presented for both the linear and planar dipole arrays. The performance of dipole array is analyzed in terms of input impedance, return loss, and radiation pattern for different configurations. The effect of curved platform (substrate and ground plane) on the radiation behaviour of dipole array is analyzed. The book explains fundamentals of EM design and analysis of dipole antenna array through numerous illustrations. It is essentially a step-to-step guide for beginners in the field of antenna array design and engineering.



Conformal Array Antenna Theory And Design


Conformal Array Antenna Theory And Design
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Author : Lars Josefsson
language : en
Publisher: John Wiley & Sons
Release Date : 2006-02-10

Conformal Array Antenna Theory And Design written by Lars Josefsson 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 2006-02-10 with Technology & Engineering categories.


This is the first comprehensive treatment of conformal antenna arrays from an engineering perspective. While providing a thorough foundation in theory, the authors of this publication provide a wealth of hands-on instruction for practical analysis and design of conformal antenna arrays. Thus, you get the knowledge you need, alongside the practical know-how to design antennas that are integrated into such structures aircrafts or skyscrapers.



Probe Suppression In Conformal Phased Array


Probe Suppression In Conformal Phased Array
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Author : Hema Singh
language : en
Publisher: Springer
Release Date : 2016-08-23

Probe Suppression In Conformal Phased Array written by Hema Singh and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-23 with Technology & Engineering categories.


This book considers a cylindrical phased array with microstrip patch antenna elements and half-wavelength dipole antenna elements. The effect of platform and mutual coupling effect is included in the analysis. The non-planar geometry is tackled by using Euler's transformation towards the calculation of array manifold. Results are presented for both conducting and dielectric cylinder. The optimal weights obtained are used to generate adapted pattern according to a given signal scenario. It is shown that array along with adaptive algorithm is able to cater to an arbitrary signal environment even when the platform effect and mutual coupling is taken into account. This book provides a step-by-step approach for analyzing the probe suppression in non-planar geometry. Its detailed illustrations and analysis will be a useful text for graduate and research students, scientists and engineers working in the area of phased arrays, low-observables and stealth technology.



Antennas With Transmission Line Interconnections


Antennas With Transmission Line Interconnections
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Author : Ronold Wyeth Percival King
language : en
Publisher:
Release Date : 1969

Antennas With Transmission Line Interconnections 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 1969 with Antennas (Electronics) categories.


Arrays of cylindrical dipoles and monopoles are usually driven by means of interconnecting transmission lines, whereas analyses of such arrays are generally made in terms of currents or voltages with assigned relative amplitudes and phases at the individual input terminals. Moreover, it is commonly assumed that the distributions of current along all elements are the same and without phase variation. In this report the properties of broadside and endfire arrays are treated with full consideration of interconnecting transmission lines and the effect of mutual coupling on the distributions of current. Driving-point admittances and field patterns of arrays of half-wave and full-wave elements are given. A novel broadside-endfire array is described. (Author).



On The Long Cylindrical Antenna


On The Long Cylindrical Antenna
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Author : Charles J. Drane
language : en
Publisher:
Release Date : 1974

On The Long Cylindrical 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 1974 with Antennas, Dipole categories.


Approximate solutions are derived for current and charge distributions on center-driven, electrically thin, cylindrical dipole antennas. These solutions apply to electrically long dipoles for which the King-Wu three-term theory is apparently not sufficient, although they are equally useful for the shorter dipoles for which the three-term theory is completely satisfactory. They can apply to cases requiring treatment of a broad range of electrical lengths such as, for example, dipoles driven by pulsed rather than steady-state voltages and log-periodic arrays of dipoles. Current and charge distributions are graphed for ten dipoles whose electrical half-lengths cover the range 0.75(0.25)3.00 times the wavelength. These theoretical results compare favorably with available experimental values. (Author).



Theory And Application Of Antenna Arrays


Theory And Application Of Antenna Arrays
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Author : M. T. Ma
language : en
Publisher: John Wiley & Sons
Release Date : 1974

Theory And Application Of Antenna Arrays written by M. T. Ma 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 1974 with Antenna arrays categories.




Flat Radiating Dipoles And Applications To Arrays


Flat Radiating Dipoles And Applications To Arrays
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Author : G. Dubost
language : en
Publisher: Research Studies Press Limited
Release Date : 1981

Flat Radiating Dipoles And Applications To Arrays written by G. Dubost 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 1981 with Antenna arrays categories.