Electromagnetics and antenna technology / Alan J. Fenn.

Format:

Book

Author/Creator:

Fenn, A. J. (Alan Jeffrey), 1953- author.

Series:

Artech antenna and electromagnetics analysis library

Language:

English

Subjects (All):

Antennas (Electronics).

Physical Description:

1 online resource (xvi, 457 pages)

Edition:

1st ed.

Distribution:

[Piscataqay, New Jersey] : IEEE Xplore, [2017]

Place of Publication:

Boston : Artech House, [2018]

Summary:

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.

Contents:

Intro

Preface

1 Electromagnetics and Antenna Theory

1.1 Introduction

1.2 Some Basics: Transmission Lines and Antennas as a Load

1.3 Electromagnetic Radiation: Maxwell's Equations

1.4 Fields from Time-Varying Electric and MagneticCurrent Sources

1.5 Boundary Conditions

1.6 Wave Equation for Conducting Media, Propagation Parameters

1.7 Electromagnetic Energy Flow

1.8 Fields of Short Electric and Magnetic Dipoles

1.9 Far-Zone Fields of Arbitrary Dipoles and Loops

1.10 Electromagnetic Wave Polarization and Receive Antennas

1.11 Antenna Bandwidth and Quality Factor

1.12 Radiation Intensity

1.13 Antenna Directivity

1.14 Gain, Realized Gain, Transmit Power, and Receive Power

1.15 Types of Antennas

1.16 Summary

1.17 PROBLEM SET

2 Phased Array Antennas

2.1 Introduction

2.2 Phased Array Basics

2.3 Equivalence Principles

2.4 Reciprocity Theorem

2.5 Reaction Integral Equation

2.6 Method of Moments

2.7 Broadside and Endfire Linear Arrays of Hertzian Dipoles

2.8 Example of 2D Array Mutual Coupling Effects

2.9 Swept-Back Dipole Array Measurements and Simulations

2.10 Rectangular Waveguide Phased Array Example

2.11 Summary

2.12 PROBLEM SET

3 Wideband Impedance Matching of a V-Dipole Antenna

3.1 Introduction

3.2 Basic Transmission Line Theory

3.3 Line Transformer Impedance Matching Theory

3.4 Wideband V-Dipole Antenna Simulation

3.5 Comparison of Simulations with Measurements

3.6 Swept-Back Dipole Feeding a Parabolic Reflector

3.7 Summary

3.8 PROBLEM SET

4 Omnidirectional Antennas

4.1 Introduction

4.2 Monopole Antennas

4.3 Wire Discone Antenna with Cylindrical Monopole

4.4 Monopole Array for Simultaneous Transmit and Receive

4.5 Horizontal Loop and Slotted Cylinder Antennas

4.6 Turnstile Antenna with Crossed V-Dipoles.

4.7 Summary

4.8 PROBLEM SET

5 Vector Sensor Array Antennas

5.1 Introduction

5.2 Background

5.3 Vector Sensor Antenna Modes

5.4 Vector Sensor Antenna Design and Simulated Radiation Patterns for a Nanosatellite Application

5.5 Vector Sensor Antenna Polarization Response

5.6 Source Mapping From Vector Sensor Time-Series Data

5.7 Summary

6 Lumped-Element ImpedanceMatched Antennas

6.1 Introduction

6.2 A Monopole Antenna Design for Mobile Communications

6.3 Analytic Impedance Matching Solution with a Parallel LC Network

6.4 Calculated Impedance Matching Circuit Parameters and Matched Antenna Results

6.5 Summary

6.6 PROBLEM SET

7 Dipole Array Analysis for theChain Home Radar

7.1 Introduction

7.2 Chain Home Main Transmit Dipole Array

7.3 Reflection From a Planar Lossy Half Space

7.4 Simulated Radiation Patterns for the MainTransmit Array

7.5 Summary

7.6 PROBLEM SET

8 Circular Waveguide Antenna for aPortable Computer-Based Radar

8.1 Introduction

8.2 Theory

8.3 Design

8.4 Simulations and Measurements

8.5 Summary

8.6 PROBLEM SET

9 3D-Printed Nonplanar Circular Patch Array Antenna

9.1 Introduction

9.2 Circular Patch Antenna Theory

9.3 Single Planar Patch Element Simulation Example

9.4 Nonplanar Array Antenna Design, Simulation Model, and Fabrication

9.5 Measured and Simulated Results

9.6 Summary

9.7 PROBLEM SET

10 Design and Analysis of a Planar Array-Fed Axisymmetric Gregorian Reflector System

10.1 Introduction

10.2 Antenna Design

10.3 Electromagnetic Simulation Results

10.4 Summary

11 Ultrawideband Dipole Array Antenna

11.1 Introduction

11.2 Ultrawideband Dipole Array Design

11.3 Ultrawideband Dipole Compared to Thin Dipole: Free Space

11.4 Ultrawideband Linear Array Simulation

11.5 Experimental Prototype UWB Array.

11.6 Summary

12 Antenna and ElectromagneticField Measurements

12.1 Introduction

12.2 Antenna Test Regions

12.3 Planar Near-Field Measurements Theory

12.4 Focused Near-Field Adaptive Nulling Concept

12.5 An RF Systems Test Facility

12.6 Summary

About the Author

Index.

Notes:

Includes bibliographical references and index.

Description based on print version record.

ISBN:

9781630815202

1630815209

OCLC:

1041917474