Download or read book Electromagnetic Characterization of Conformal Antennas written by John Leonidas Volakis and published by . This book was released on 1992 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book electromagnetic characterization of conformal antennas written by jl volaks, lc kempel, a alexanian, jm jin, cl yu and ac woo and published by . This book was released on 1992 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conformal Array Antenna Theory and Design written by Lars Josefsson and published by John Wiley & Sons. This book was released on 2006-02-10 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Low Profile Conformal Antenna Arrays on High Impedance Substrate written by Hema Singh and published by Springer. This book was released on 2015-09-28 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Introduction to Antenna Analysis Using EM Simulators written by Hiroaki Kogure and published by Artech House. This book was released on 2011 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for novice engineers and engineering students, this easy-to-comprehend resource offers you thorough introductory-level treatment of antenna analysis using electromagnetic (EM) simulators. This richly-illustrated book shows you how to use EM software to analyze and tune wireless antennas to meet specific requirements. You learn important wireless antenna design terminology and gain a detailed understanding of how antennas work. Moreover, the book offers you guidance in troubleshooting problems with wireless antenna designs. This authoritative reference also provides you with a complete overview of the many different kinds of antennas and related EM tools.
Download or read book A Characterization and Applications of High Impedance Ground Planes with Conformal Antennas written by Benjamin Russell Wilmhoff and published by . This book was released on 2002 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Conformal Antenna Array Beamforming Characteristics Using K band Waveguide Elements written by Nithin Reddy Gudur and published by . This book was released on 2010 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project will focus on the application of advanced electromagnetic simulation software 4NEC2 for the far-field characterization of a 3-element K-band array of waveguide antenna. Previous modeling efforts have shown a significant difference between simulated and measured data. The key effort in this project will be to minimize the difference between simulated and measured data by use of the 4NEC2 software. The simulation will be carried out on both a 3-element array of open-ended waveguides. The main application of these arrays in the far-field is in satellite K-band applications, where we would require multiple beams that can be controlled in beamwidth and position. The conformal nature of the array described in this work has the ability to control the beam positions and beamwidth by adjusting the conformal nature of the array.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Radiation Scattering and Diffraction written by Prabhakar H. Pathak and published by John Wiley & Sons. This book was released on 2021-12-21 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic Radiation, Scattering, and Diffraction Discover a graduate-level text for students specializing in electromagnetic wave radiation, scattering, and diffraction for engineering applications In Electromagnetic Radiation, Scattering and Diffraction, distinguished authors Drs. Prabhakar H. Pathak and Robert J. Burkholder deliver a thorough exploration of the behavior of electromagnetic fields in radiation, scattering, and guided wave environments. The book tackles its subject from first principles and includes coverage of low and high frequencies. It stresses physical interpretations of the electromagnetic wave phenomena along with their underlying mathematics. The authors emphasize fundamental principles and provide numerous examples to illustrate the concepts contained within. Students with a limited undergraduate electromagnetic background will rapidly and systematically advance their understanding of electromagnetic wave theory until they can complete useful and important graduate-level work on electromagnetic wave problems. Electromagnetic Radiation, Scattering and Diffraction also serves as a practical companion for students trying to simulate problems with commercial EM software and trying to better interpret their results. Readers will also benefit from the breadth and depth of topics, such as: Basic equations governing all electromagnetic (EM) phenomena at macroscopic scales are presented systematically. Stationary and relativistic moving boundary conditions are developed. Waves in planar multilayered isotropic and anisotropic media are analyzed. EM theorems are introduced and applied to a variety of useful antenna problems. Modal techniques are presented for analyzing guided wave and periodic structures. Potential theory and Green's function methods are developed to treat interior and exterior EM problems. Asymptotic High Frequency methods are developed for evaluating radiation Integrals to extract ray fields. Edge and surface diffracted ray fields, as well as surface, leaky and lateral wave fields are obtained. A collective ray analysis for finite conformal antenna phased arrays is developed. EM beams are introduced and provide useful basis functions. Integral equations and their numerical solutions via the method of moments are developed. The fast multipole method is presented. Low frequency breakdown is studied. Characteristic modes are discussed. Perfect for graduate students studying electromagnetic theory, Electromagnetic Radiation, Scattering, and Diffraction is an invaluable resource for professional electromagnetic engineers and researchers working in this area.
Download or read book Electromagnetic Scattering and Radiation from Microstrip Patch Antennas and Spirals Residing in a Cavity written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new hybrid method is presented for the analysis of the scattering and radiation by conformal antennas and arrays comprised of circular or rectangular elements. In addition, calculations for cavity-backed spiral antennas are given. The method employs a finite element formulation within the cavity and the boundary integral (exact boundary condition) for terminating the mesh. By virtue of the finite element discretization, the method has no restrictions on the geometry and composition of the cavity or its termination. Furthermore, because of the convolutional nature of the boundary integral and the inherent sparseness of the finite element matrix, the storage requirement is kept very low at O(n). These unique features of the method have already been exploited in other scattering applications and have permitted the analysis of large-size structures with remarkable efficiency. In this report, we describe the method's formulation and implementation for circular and rectangular patch antennas in different superstrate and substrate configurations which may also include the presence of lumped loads and resistive sheets/cards. Also, various modelling approaches are investigated and implemented for characterizing a variety of feed structures to permit the computation of the input impedance and radiation pattern. Many computational examples for rectangular and circular patch configurations are presented which demonstrate the method's versatility, modeling capability and accuracy. Volakis, J. L. and Gong, J. and Alexanian, A. and Woo, A. Unspecified Center NCA2-653...
Download or read book Electromagnetics and Antenna Technology written by Alan Jeffrey Fenn and published by Artech House Publishers. This book was released on 2017-12-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leading expert in the field, this practical new resource presents the fundamentals of electromagnetics and antenna technology. This book covers the design, fabrication, modeling simulation, and test and measurement for various types of antennas, including dual-polarized wideband v-dipole antennas, dual-polarized four-quad loop/dipole antennas, and monocone/loop antennas. It explores the essentials of phased array antennas and includes a detailed formulation of the method of moments.This resource exhibits essential derivations of equations, providing readers with a strong foundation of the underpinnings of electromagnetics and antennas. It includes a complete chapter on the details of antenna and electromagnetic test and measurement. This book explores details on 3D printed non-planar circular patch array antenna technology and the design and analysis of a planar array-fed axisymmetric gregorian reflector. The lumped-element impedance matched antennas are examined and include a look at an analytic impedance matching solution with a parallel LC network. This book provides key insight into many aspects of antenna technology that have broad applications in radar and communications.
Download or read book Numerical Characterization of Electromagnetic Band gap Materials and Applications in Printed Antennas and Arrays written by Lijun Zhang and published by . This book was released on 2000 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Waves 2 written by and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic Waves 2 examines antennas in the field of radio waves. It analyzes the conditions of use and the parameters that are necessary in order to create an effective antenna. This book presents antennas’ definitions, regulations and fundamental equations, and describes the various forms of antennas that can be used in radio: horns, waveguides, coaxial cables, printed and miniature antennas. It presents the characterization methods and the link budgets as well as the digital methods that make the fine calculation of radio antennas possible. Electromagnetic Waves 2 is a collaborative work, completed only with the invaluable contributions of Ibrahima Sakho, Hervé Sizun and JeanPierre Blot, not to mention the editor, Pierre-Noël Favennec. Aimed at students and engineers, this book provides essential theoretical support for the design and deployment of wireless radio and optical communication systems.
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1994-02 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Metallic Antennas and Scatterers written by Branko D. Popović and published by IET. This book was released on 1994 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a novel, general entire-domain method for the analysis of metallic antennas and scatterers that enables a very wide range of problems to be solved using computers of relatively modest capability. The conventional approximation approach requires a large amount of computer storage. Of interest to engineers, scientists, and graduate students engaged in the analysis or design of electrically small and medium-sized antennas and scatterers. Distributed by INSPEC. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Characterization of Antennas Used in the Measurement of Electromagnetic Interference EMI written by Ratan Kumar Bhatia and published by . This book was released on 1984 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
