Antenna Engineering Using Physical Optics / Edition 1

by Leo Diaz, Thomas Milligan

Overview

Spend less time setting up complex antenna design problems and improve the accuracy of your results with this practical new book and software package. It shows you how to combine physical optics modeling techniques with the free space dyadic Green's function to quickly and easily calculate antenna patterns and diffraction from nearby objects, letting your PC do the specialized math for you.

Product Details

ISBN-13:	9780890067321
Publisher:	Artech House, Incorporated
Publication date:	09/30/1996
Series:	Artech House Antenna Library Series
Edition description:	BK&DISK
Pages:	362
Product dimensions:	6.14(w) x 9.21(h) x 0.81(d)

About the Author

Leo Diaz is a staff consultant at Ball Telecommunications Products Division, Broomfield, CO. He received his M.S. in electrical engineering from Polytechnic Institute, New York. Thomas Milligan is chief engineer at Milligan Associates, Inc. He earned his M.S. in electrical engineering from Johns Hopkins University. A member if the IEEE AP Society, Mr. Milligan has served as an editor of both Transactions and Antenna Magazine.

Table of Contents

Overview: Introduction. Physical Optics and Dyadic Green Function. MATLAB® Organization. FORTRAN Organization. Near and Far Field with Vector Propagators. Relation Between Gain and Radiated Field Strength. Assumed Currents on Antenna Elements. Diffraction-Excitation of Currents on Nearby Ground Planes. Parabolic Reflectors. Radar Cross Section. Propagation: Green's Function Formulation. Scalar Green's Function. Dyadic Green's Function. Near and Far Field Regions. Vector Propagator. Radiated Power. Appendix 2.1 — Useful Mathematical Identities. Appendix 2.2 — Notes on the Derivation of the Dyadic Green's Functions. Appendix 2.3 — FORTRAN Subroutines. Arrays and Small Antenna Elements: Introduction. Gain Related to Field Strength. Antenna Arrays. Dipole. Active Pattern, Active Impedance, and Gain of Array. Slots. Microstrip Patch Antennas. Pattern Approximations. Coordinate Rotations. Input from Measured Patterns. Apertures: Equivalence Principle. Equivalent Currents. Aperture Antennas. Pyramidal Horn. Conical Horn. Diffraction: Edge Diffraction. Planar Impedance-Surface Ground Plane. Coated Ground Plane. Direct Currents Method. Hemisphere Diffraction Method for Finite Circular Disks. Diffraction Calculations Using Pyramid Approach. Other Antenna Diffraction Effects. Reflector Antennas: Equivalent Surface at Reflector Surface. Simple Reflector Analysis. Spillover. Blockage. Strut Scattering. Multiple Reflectors. Array Feeding of Reflector. Appendix 6.1 — MATLAB Coordinate Rotations. Appendix 6.2 — FORTRAN Subroutines for Arbitrary Rim Shapes. Appendix 6.3 — FORTRAN Routines for Feeds Using Pattern Approximations. Appendix 6.4 — FORTRAN Routines Using Measured Feed Pattern. Radar

Editorial Reviews

An examination of the field, with an eye toward a competitive environment where speed and efficiency are as vital as accuracy, allowing analysis with a minimum of engineering time. Topics include propagation, arrays and small antenna elements, apertures, diffraction, reflector antennas, and radar cross-section. Appendices contain mathematical identities, FORTRAN routines and subroutines, MATLAB coordinate rotations, an index to FORTRAN and C routines, an index to inputs and outputs to FORTRAN and C routines, and a MATLAB file index. Annotation c. Book News, Inc., Portland, OR (booknews.com)

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