Computational Methods for Antenna Pattern Synthesis

Computational Methods for Antenna Pattern Synthesis PDF Author: Joseph R. Mautz
Publisher:
ISBN:
Category : Antenna radiation patterns
Languages : en
Pages : 52

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Book Description
Some general numerical methods for antenna pattern synthesis, with and without constraints, are developed in this report. Particular cases considered are (1) field pattern specified in amplitude and phase, (2) field pattern specified in amplitude only, (3) these two cases with a constraint on the source quality factor. Both the source and the field are discretized at the beginning, and the methods of finite dimentional vector spaces are used for the computations. The theory is general, but is applied only to point sources arbitrarily distributed in a plane, and to pattern synthesis in this plane. Some numerical examples are given for ten sources approximately equispaced on one-half of an ellipse, with the desired field pattern chosen to be the cosecant phi pattern in the first quadrant. (Author).

Computational Methods for Antenna Pattern Synthesis

Computational Methods for Antenna Pattern Synthesis PDF Author: Joseph R. Mautz
Publisher:
ISBN:
Category : Antenna radiation patterns
Languages : en
Pages : 52

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Book Description
Some general numerical methods for antenna pattern synthesis, with and without constraints, are developed in this report. Particular cases considered are (1) field pattern specified in amplitude and phase, (2) field pattern specified in amplitude only, (3) these two cases with a constraint on the source quality factor. Both the source and the field are discretized at the beginning, and the methods of finite dimentional vector spaces are used for the computations. The theory is general, but is applied only to point sources arbitrarily distributed in a plane, and to pattern synthesis in this plane. Some numerical examples are given for ten sources approximately equispaced on one-half of an ellipse, with the desired field pattern chosen to be the cosecant phi pattern in the first quadrant. (Author).

Computer Programs for Antenna Pattern Synthesis

Computer Programs for Antenna Pattern Synthesis PDF Author: Joseph R. Mautz
Publisher:
ISBN:
Category : Antenna radiation patterns
Languages : en
Pages : 76

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Book Description
The report contains computer programs, instructions, and sample input-output data for antenna pattern synthesis as developed in the previous report 'Computational Methods for Antenna Pattern Synthesis'. The programs are valid for point sources arbitrarily distributed in a plane, and for pattern synthesis in this plane. Included are programs for synthesis with (1) pattern magnitude and phase specified, (2) pattern magnitude only specified, (3) these two cases with a constraint on the source norm, and the first two cases with a constraint on the source quality factor. Also included are programs to compute and plot the specified and synthesized patterns. (Author).

Antenna Arrays

Antenna Arrays PDF Author: Randy L. Haupt
Publisher: John Wiley & Sons
ISBN: 9780470937433
Category : Technology & Engineering
Languages : en
Pages : 534

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Book Description
A comprehensive tutorial on the design and practical applications of antenna arrays An antenna array is an assembly of antenna elements that maximizes a received or transmitted signal in a desired direction. This practical book covers a wide range of antenna array topics that are becoming increasingly important in wireless applications, with emphasis on array design, applications, and computer modeling. Each chapter in Antenna Arrays builds upon the previous chapter, progressively addressing more difficult material. Beginning with basic electromagnetics/antennas/antenna systems information, the book then deals with the analysis and synthesis of arrays of point sources and their associated array factors. It presents a sampling of different antenna elements that replace these point sources, then presents element configurations that do not have to lie along a line or in a plane. The complex and difficult-to-predict interactions of elements and electromagnetic waves are introduced, along with computer modeling and experiments that are necessary for predicting the performance of arrays where mutual coupling is important. Then, various approaches to getting signals to and from the array elements to a computer where the signal detection takes place are explored, as are the numerical techniques behind smart antennas. The book emphasizes the computational methods used in the design and analysis of array antennas. Also featured are signal processing and numerical modeling algorithms, as well as pictures of antenna arrays and components provided by industry and government sources, with explanations of how they operate. Fully course-tested, Antenna Arrays serves as a complete text in phased array design and theory for advanced undergraduate- and graduate-level courses in electronics and communications, as well as a reference for practicing engineers and scientists in wireless communications, radar, and remote sensing.

Antenna Pattern Synthesis Computer Program

Antenna Pattern Synthesis Computer Program PDF Author: Jose Perini
Publisher:
ISBN:
Category :
Languages : en
Pages : 20

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Book Description
Optimization techniques have been applied to the antenna pattern synthesis problem using point sources and ignoring the mutual coupling effects. If these effects are to be taken into account, it becomes very costly to perform the synthesis. In this report an approximate way to solve this problem has been prepared and implemented on a computer program. (Author).

A Method of Antenna Pattern Synthesis

A Method of Antenna Pattern Synthesis PDF Author: Thomas Vincent Sikina
Publisher:
ISBN:
Category : Antenna arrays
Languages : en
Pages : 104

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Book Description


Antenna Pattern Synthesis

Antenna Pattern Synthesis PDF Author: Donald R. Rhodes
Publisher:
ISBN:
Category : Antennas (Electronics)
Languages : en
Pages : 22

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Book Description
An investigation was made toward evolving a method of two-dimensional antenna pattern synthesis such that antenna specifications involving dimensionality, shape, and the constituent relations can be lated to the frequency characteristics. (Author).

Array Pattern Optimization

Array Pattern Optimization PDF Author: Jafar Ramadhan Mohammed
Publisher: BoD – Books on Demand
ISBN: 1789857414
Category : Technology & Engineering
Languages : en
Pages : 122

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Book Description
Array pattern optimization is a very important and necessary issue in the majority of modern communication systems in a variety of applications such as sonar, radar, navigation, wireless communications, and many other engineering fields. Classical methods for array pattern synthesis have worked mainly with analytical models that are linear, local and, thus, their performances were not optimum. They have always been designed with closed-form mathematical models. Unlike these analytical methods, the global optimization methods with powerful computing tools offer optimum solutions. During the last few years, the design of the antenna arrays has been a topic of significant research activity. This book presents recent advances in the field of array pattern optimization. It is targeted primarily toward students and researchers who want to be exposed to a wide variety of antenna array design and optimization. It includes five chapters as well as the introductory chapter. These five chapters are categorized into five different areas depending on the application. These applications are ordered to address interference suppression, electronic toll collection, mmWave and ultra-wideband, integrated antennas, and educational packages for modeling smart antenna for 5G wireless communications. The book has the advantage of providing a collection of applications that are entirely independent and self-contained; thus, the interested reader can choose any chapter and skip to another without losing continuity.

Practical Models of Antenna Systems

Practical Models of Antenna Systems PDF Author: Amur B. Khashimov
Publisher: Springer Nature
ISBN: 9811962197
Category : Science
Languages : en
Pages : 130

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Book Description
This book discusses the principles of forming and analysis of mathematical models of a wide class of antenna systems, new scientific directions in the development and application of computational algorithms for the study of mathematical models for antenna arrays of radio navigating systems. The book is presented for specialists in antenna system design; it may be useful for students of radio engineering specialties. This book consequentially uses the asymptotic correspondence of two-dimensional and three-dimensional problems to antenna engineering, that includes the influence of the placement objects for a given limited class of problems. Rigorous electrodynamics formulations of models and the use of efficient numerical methods provide the reliability and accuracy of modeling.

Orthogonal Methods for Array Synthesis

Orthogonal Methods for Array Synthesis PDF Author: John Sahalos
Publisher: John Wiley & Sons
ISBN: 047002853X
Category : Technology & Engineering
Languages : en
Pages : 228

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Book Description
The first time that such a complete systematic analysis of the mathematical and numerical techniques related to the orthogonal methods has been given. With the explosion of the wireless world, greater emphasis than ever before is being placed on the effective design of antennas. Orthogonal Methods for Array Synthesis outlines several procedures of orthogonal methods suitable for antenna array synthesis. The book presents a simple approach to the design of antenna arrays to enable the reader to use the classical Orthogonal Method for synthesis of linear arrays. This theory-based book, which includes rapid, effective solutions to design problems for communications applications and broadcasting, is amply illustrated with real-world examples and case studies. Also included in the book is the ORAMA MS Windows-compatible computer tool, patented by Professor Sahalos and his team. Provides comprehensive coverage of the basic principles of orthogonal methods including an analytical explanation of the orthogonal method (OM) and the orthogonal perturbation method (OP) Gives rapid, cost-effective solutions to antenna design problems for communications applications and broadcasting Illustrates all theory with practical applications gleaned from the author’s extensive experience in the field of orthogonal advanced methods for antennas Providing a complete guide to the theory and applications of the Orthogonal Methods, this book is a must-read for antenna engineers and graduate students of electrical and computer engineering and physics.

A Study of Antenna Pattern Synthesis

A Study of Antenna Pattern Synthesis PDF Author: Edward Knox Proctor (Jr.)
Publisher:
ISBN:
Category : Antennas (Electronics)
Languages : en
Pages : 178

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Book Description