Small Antenna Handbook

by Hansen, Robert C.; Collin, Robert E.

• ISBN13: 9780470890837
• ISBN10: 0470890835
• Edition: 1st
• Format: Hardcover
• Copyright: 2011-10-25
• Publisher: Wiley-IEEE Press

Summary

Now in an completely revised, updated, and enlarged Second Edition, Small Antennas in Portable Devices reviews recent significant theoretical and practical developments in the electrically small antenna area. Examining antenna designs that work as well as those that have limitations, this new edition provides practicing engineers and upper level and graduate students with new information on: work on improving bandwidth using spherical helix dipoles; work on electromagnetically coupled structures; exact derivation of the Q for electrically small antennas for both the TE and TM modes; and a new simplified Q formula.

Author Biography

has had a long and distinguished career in the aerospace industry. Beginning in 1949, he held key posts in a number of leading aerospace companies, including The Aerospace Corp., STL, Inc. (now TRW), and Hughes Aircraft Co. He is a Fellow of IEEE and IEE and is a member of the National Academy of Engineering. Since 1971, Dr. Hansen has been a consulting engineer for antennas and systems-related problems. The Late taught at Case Reserve Western University, where he was chairman of the Department of Electrical Engineering and Applied Physics. He was an invited professor at Pontifical Catholic University of Rio de Janeiro; Telebras Research Center, Brazil; and Beijing University, China. Dr. Collin was the author or coauthor of five books and more than 150 technical papers.

Table of Contents

Preface	p. xiii
Quality Factors of ESA	p. 1
Introduction	p. 1
Chu Antenna Q	p. 4
Collin and Rothschild Q Analysis	p. 8
Thal Antenna Q	p. 14
Radian Sphere with Mu and/or Epsilon: TE Modes	p. 16
Radian Sphere with Mu and/or Epsilon: TM Modes	p. 22
Effects of Core Losses	p. 28
Q for Spheroidal Enclosures	p. 34
References	p. 36
Bandwidth and Matching	p. 39
Introduction	p. 39
Foster's Reactance Theorem and Smith Chart	p. 39
Fano's Matching Limitations	p. 41
Matching Circuit Loss Magnification	p. 46
Network and Z0 Matching	p. 48
Non-Foster Matching Circuits	p. 50
Matched and High-Z Preamp Monopoles	p. 51
A Short Monopole Matched at One Frequency	p. 52
Short Monopole with High-Impedance Amplifier	p. 54
References	p. 55
Electrically Small Antennas: Canonical Types	p. 59
Introduction	p. 59
Dipole Basic Characteristics	p. 59
Dipole Impedance and Bandwidth	p. 59
Resistive and Reactive Loading	p. 67
Other Loading Configurations	p. 76
Short Flat Resonant Dipoles	p. 78
Spherical Helix Antennas	p. 82
Multiple Resonance Antennas	p. 84
Spherical Dipole; Arc Antennas	p. 84
Multiple Mode Antennas	p. 86
Q Comparisons	p. 87
Evaluation of Moment Method Codes for Electrically Small Antennas	p. 88
Partial Sleeve, PIFA, and Patch	p. 93
Partial Sleeve	p. 93
PIFA Designs	p. 94
Patch with Permeable Substrate	p. 98
Loops	p. 101
Air Core Loops, Single and Multiple Turns	p. 101
Permeable Core Loops	p. 107
Receiving Loops	p. 114
Vector Sensor	p. 116
Dielectric Resonator Antennas	p. 120
References	p. 127
Clever Physics, But Bad Numbers	p. 135
Contrawound Toroidal Helix Antenna	p. 135
Transmission Line Antennas	p. 138
Halo, Hula Hoop, and DDRR Antennas	p. 138
Dielectric-Loaded Antennas	p. 140
Meanderline Antennas	p. 141
Cage Monopole	p. 142
References	p. 143
Pathological Antennas	p. 147
Crossed-Field Antenna	p. 147
Infinite Efficiency Antenna	p. 149
E-H Antenna	p. 150
TE-TM Antenna	p. 150
Crossed Dipoles	p. 151
Snyder Dipole	p. 152
Loop-Coupled Loop	p. 155
Multiarm Dipole	p. 158
Complementary Pair Antenna	p. 158
Integrated Antenna	p. 159
Q = 0 Antenna	p. 160
Antenna in a NIM Shell	p. 161
Fractal Antennas	p. 162
Antenna on a Chip	p. 170
Random Segment Antennas	p. 171
Multiple Multipoles	p. 171
Switched Loop Antennas	p. 173
Electrically Small Focal Spots	p. 174
ESA Summary	p. 174
References	p. 175
Superdirective Antennas	p. 181
History and Motivation	p. 181
Maximum Directivity	p. 182
Apertures	p. 182
Arrays	p. 183
Broadside Arrays of Fixed Spacing	p. 183
Endfire Arrays	p. 186
Minimization Codes	p. 192
Resonant Endfire Arrays	p. 192
Constrained Superdirectivity	p. 194
Dolph-Chebyshev Superdirectivity	p. 194
Superdirective Ratio Constraint	p. 198
Bandwidth or Q Constraint	p. 200
Phase or Position Adjustment	p. 200
Tolerance Constraint	p. 201
Bandwidth, Efficiency, and Tolerances	p. 201
Bandwidth	p. 201
Efficiency	p. 205
Tolerances	p. 208
Miscellaneous Superdirectivity	p. 209
Superdirective Antenna Summary	p. 210
References	p. 210
Superconducting Antennas	p. 215
Introduction	p. 215
Superconductivity Concepts for Antenna Engineers	p. 215
Dipole, Loop, and Patch Antennas	p. 221
Loop and Dipole Antennas	p. 222
Microstrip Antennas	p. 223
Array Antennas	p. 225
Millimeter-Wave Antennas	p. 229
Waveguide Flat Plane Array	p. 229
Microstrip Planar Array	p. 230
Submillimeter Antennas	p. 232
Low-Temperature Superconducting Antennas	p. 232
Phasers and Delay Lines	p. 233
Superconducting Antenna Summary	p. 236
References	p. 236
A World History of Electrically Small Antennas	p. 243
Definitions of Terms Useful to ESA	p. 277
Spherical Shell of Eng Metamaterial Surrounding A Dipole Antenna	p. 279
Frequency Dispersion Limits Resolution in Veselago Lens	p. 307
Author Index	p. 335
Subject Index	p. 343
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