Electromagnetic Scattering Analysis of a Three-Dimensional-Cavity-Backed Aperture in an Infinite Ground Plane Using a Combined Finite Element Method/Method of Moments Approach

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722199579
Total Pages : 24 pages
Book Rating : 4.1/5 (995 download)

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Book Synopsis Electromagnetic Scattering Analysis of a Three-Dimensional-Cavity-Backed Aperture in an Infinite Ground Plane Using a Combined Finite Element Method/Method of Moments Approach by : National Aeronautics and Space Administration (NASA)

Download or read book Electromagnetic Scattering Analysis of a Three-Dimensional-Cavity-Backed Aperture in an Infinite Ground Plane Using a Combined Finite Element Method/Method of Moments Approach written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-20 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A combined finite element method/method of moments (FEM/MoM) approach is used to analyze the electromagnetic scattering properties of a three-dimensional-cavity-backed aperture in an infinite ground plane. The FEM is used to formulate the fields inside the cavity, and the MoM (with subdomain bases) in both spectral and spatial domains is used to formulate the fields above the ground plane. Fields in the aperture and the cavity are solved using a system of equations resulting from the combination of the FEM and the MoM. By virtue of the FEM, this combined approach is applicable to all arbitrarily shaped cavities with inhomogeneous material fillings, and because of the subdomain bases used in the MoM, the apertures can be of any arbitrary shape. This approach leads to a partly sparse and partly full symmetric matrix, which is efficiently solved using a biconjugate gradient algorithm. Numerical results are presented to validate the analysis. Reddy, C. J. and Deshpande, Manohar D. and Cockrell, C. R. and Beck, F. B. Langley Research Center RTOP 505-64-70-01...

Electromagnetic Scattering Analysis of a Three-dimensional-cavity-backed Aperture in an Infinite Ground Plane Using a Combined Finite Element Method/method of Moments Approach

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Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Electromagnetic Scattering Analysis of a Three-dimensional-cavity-backed Aperture in an Infinite Ground Plane Using a Combined Finite Element Method/method of Moments Approach by :

Download or read book Electromagnetic Scattering Analysis of a Three-dimensional-cavity-backed Aperture in an Infinite Ground Plane Using a Combined Finite Element Method/method of Moments Approach written by and published by . This book was released on 1995 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Finite Element Method in Electromagnetics

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Publisher : John Wiley & Sons
ISBN 13 : 1118842022
Total Pages : 800 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis The Finite Element Method in Electromagnetics by : Jian-Ming Jin

Download or read book The Finite Element Method in Electromagnetics written by Jian-Ming Jin and published by John Wiley & Sons. This book was released on 2015-02-18 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new edition of the leading textbook on the finite element method, incorporating major advancements and further applications in the field of electromagnetics The finite element method (FEM) is a powerful simulation technique used to solve boundary-value problems in a variety of engineering circumstances. It has been widely used for analysis of electromagnetic fields in antennas, radar scattering, RF and microwave engineering, high-speed/high-frequency circuits, wireless communication, electromagnetic compatibility, photonics, remote sensing, biomedical engineering, and space exploration. The Finite Element Method in Electromagnetics, Third Edition explains the method’s processes and techniques in careful, meticulous prose and covers not only essential finite element method theory, but also its latest developments and applications—giving engineers a methodical way to quickly master this very powerful numerical technique for solving practical, often complicated, electromagnetic problems. Featuring over thirty percent new material, the third edition of this essential and comprehensive text now includes: A wider range of applications, including antennas, phased arrays, electric machines, high-frequency circuits, and crystal photonics The finite element analysis of wave propagation, scattering, and radiation in periodic structures The time-domain finite element method for analysis of wideband antennas and transient electromagnetic phenomena Novel domain decomposition techniques for parallel computation and efficient simulation of large-scale problems, such as phased-array antennas and photonic crystals Along with a great many examples, The Finite Element Method in Electromagnetics is an ideal book for engineering students as well as for professionals in the field.

Analysis of Three-Dimensional-Cavity-Backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffracti

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Publisher : Independently Published
ISBN 13 : 9781729174234
Total Pages : 30 pages
Book Rating : 4.1/5 (742 download)

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Book Synopsis Analysis of Three-Dimensional-Cavity-Backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffracti by : National Aeronautics and Space Adm Nasa

Download or read book Analysis of Three-Dimensional-Cavity-Backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffracti written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-25 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A combined finite element method (FEM) and method of moments (MoM) technique is presented to analyze the radiation characteristics of a cavity-fed aperture in three dimensions. Generalized feed modeling has been done using the modal expansion of fields in the feed structure. Numerical results for some feeding structures such as a rectangular waveguide, circular waveguide, and coaxial line are presented. The method also uses the geometrical theory of diffraction (GTD) to predict the effect of a finite ground plane on radiation characteristics. Input admittance calculations for open radiating structures such as a rectangular waveguide, a circular waveguide, and a coaxial line are shown. Numerical data for a coaxial-fed cavity with finite ground plane are verified with experimental data. Reddy, C. J. and Deshpande, M. D. and Cockrell, C. R. and Beck, F. B. Langley Research Center RTOP 505-64-70-01...

Government Reports Announcements & Index

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Publisher :
ISBN 13 :
Total Pages : 668 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996-02 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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ISBN 13 :
Total Pages : 980 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electromagnetic Scattering from a Rectangular Cavity Recessed in a 3-D Conducting Surface

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Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Electromagnetic Scattering from a Rectangular Cavity Recessed in a 3-D Conducting Surface by : M. D. Deshpande

Download or read book Electromagnetic Scattering from a Rectangular Cavity Recessed in a 3-D Conducting Surface written by M. D. Deshpande and published by . This book was released on 1995 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Methods and Applications of Analysis

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ISBN 13 :
Total Pages : 678 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Methods and Applications of Analysis by :

Download or read book Methods and Applications of Analysis written by and published by . This book was released on 2004 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electrical & Electronics Abstracts

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ISBN 13 :
Total Pages : 2304 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Electrical & Electronics Abstracts by :

Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electromagnetic Scattering from a Rectangular Cavity Recessed in a 3-D Conducting Surface

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722199982
Total Pages : 50 pages
Book Rating : 4.1/5 (999 download)

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Book Synopsis Electromagnetic Scattering from a Rectangular Cavity Recessed in a 3-D Conducting Surface by : National Aeronautics and Space Administration (NASA)

Download or read book Electromagnetic Scattering from a Rectangular Cavity Recessed in a 3-D Conducting Surface 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 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of electromagnetic (EM) scattering from an aperture backed by a rectangular cavity recessed in a three-dimensional conducting body is analyzed using the coupled field integral equation approach. Using the free-space Green's function, EM fields scattered outside the cavity are determined in terms of (1) an equivalent electric surface current density flowing on the three-dimensional conducting surface of the object including the cavity aperture and (2) an equivalent magnetic surface current density flowing over the aperture only. The EM fields inside the cavity are determined using the waveguide modal expansion functions. Making the total tangential electric and magnetic fields across the aperture continuous and subjecting the total tangential electric field on the outer conducting three-dimensional surface of the object to zero, a set of coupled integral equations is obtained. The equivalent electric and magnetic surface currents are then obtained by solving the coupled integral equation using the Method of Moments. The numerical results on scattering from rectangular cavities embedded in various three-dimensional objects are compared with the results obtained by other numerical techniques. Deshpande, M. D. and Reddy, C. J. Langley Research Center NAS1-19341; RTOP 505-64-52-04...

Applied Science & Technology Index

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ISBN 13 :
Total Pages : 1628 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Applied Science & Technology Index by :

Download or read book Applied Science & Technology Index written by and published by . This book was released on 1996 with total page 1628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Engineering Index Annual

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ISBN 13 :
Total Pages : 2264 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis The Engineering Index Annual by :

Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.

A Determination of the Electromagnetic Scattering from a Cavity-backed Plane Surface

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ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis A Determination of the Electromagnetic Scattering from a Cavity-backed Plane Surface by : John K. Schindler

Download or read book A Determination of the Electromagnetic Scattering from a Cavity-backed Plane Surface written by John K. Schindler and published by . This book was released on 1964 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Three-dimensional Electromagnetic Scattering from a Circular Tube of Finite Length

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Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Three-dimensional Electromagnetic Scattering from a Circular Tube of Finite Length by : Cheng C. Kao

Download or read book Three-dimensional Electromagnetic Scattering from a Circular Tube of Finite Length written by Cheng C. Kao and published by . This book was released on 1970 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Method of Moments in Electromagnetics

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Publisher : CRC Press
ISBN 13 : 1000412482
Total Pages : 510 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis The Method of Moments in Electromagnetics by : Walton C. Gibson

Download or read book The Method of Moments in Electromagnetics written by Walton C. Gibson and published by CRC Press. This book was released on 2021-09-06 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Method of Moments in Electromagnetics, Third Edition details the numerical solution of electromagnetic integral equations via the Method of Moments (MoM). Previous editions focused on the solution of radiation and scattering problems involving conducting, dielectric, and composite objects. This new edition adds a significant amount of material on new, state-of-the art compressive techniques. Included are new chapters on the Adaptive Cross Approximation (ACA) and Multi-Level Adaptive Cross Approximation (MLACA), advanced algorithms that permit a direct solution of the MoM linear system via LU decomposition in compressed form. Significant attention is paid to parallel software implementation of these methods on traditional central processing units (CPUs) as well as new, high performance graphics processing units (GPUs). Existing material on the Fast Multipole Method (FMM) and Multi-Level Fast Multipole Algorithm (MLFMA) is also updated, blending in elements of the ACA algorithm to further reduce their memory demands. The Method of Moments in Electromagnetics is intended for students, researchers, and industry experts working in the area of computational electromagnetics (CEM) and the MoM. Providing a bridge between theory and software implementation, the book incorporates significant background material, while presenting practical, nuts-and-bolts implementation details. It first derives a generalized set of surface integral equations used to treat electromagnetic radiation and scattering problems, for objects comprising conducting and dielectric regions. Subsequent chapters apply these integral equations for progressively more difficult problems such as thin wires, bodies of revolution, and two- and three-dimensional bodies. Radiation and scattering problems of many different types are considered, with numerical results compared against analytical theory as well as measurements.

Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain Method

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Publisher : Morgan & Claypool Publishers
ISBN 13 : 160845813X
Total Pages : 143 pages
Book Rating : 4.6/5 (84 download)

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Book Synopsis Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain Method by : Khaled ElMahgoub

Download or read book Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain Method written by Khaled ElMahgoub and published by Morgan & Claypool Publishers. This book was released on 2012 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodic structures are of great importance in electromagnetics due to their wide range of applications. The aim of this book is to develop efficient computational algorithms to analyze the scattering properties of various electromagnetic periodic structures using the finite-difference time-domain periodic boundary condition (FDTD/PBC) method.

Finite Element Method for Eigenvalue Problems in Electromagnetics

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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Finite Element Method for Eigenvalue Problems in Electromagnetics by : C. J. Reddy

Download or read book Finite Element Method for Eigenvalue Problems in Electromagnetics written by C. J. Reddy and published by . This book was released on 1994 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: