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Analysis, Design and Measurement of Small and Low-profile Antennas : Antenna library - Kazuhiro Hirasawa

Analysis, Design and Measurement of Small and Low-profile Antennas

Antenna library

By: Kazuhiro Hirasawa (Editor), Misao Haneishi (Editor)

Hardcover Published: 19th October 1991
ISBN: 9780890064863
Number Of Pages: 288

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Tutorial in nature, this book is based on a series of papers presented at a workshop in Japan. It constitutes the first single-volume guide to the basic methods of analyzing microstrip patch antennas, and the characteristics of rectangular, circular and arbitrarily shaped patch antennas. Supported by 273 equations, tables and illustrations this book should prove a useful tool for anyone doing applied research in antennas.

Prefacep. xiii
Introductionp. 1
How to Apply the Moment Method to Wire Antenna Analysisp. 7
Introductionp. 7
Moment Method Formulationp. 8
Boundary Condition and Formulationp. 8
Network Equivalencep. 14
Calculation of Z[subscript mn]p. 15
Impedance Loadingp. 15
Transmitting Antennasp. 17
Current Distribution and Input Impedancep. 17
Radiation Pattern and Power Gainp. 19
Efficiencyp. 21
Receiving Antennasp. 22
Current Distribution and Received Powerp. 22
Effective Areap. 26
Scattering Cross Sectionp. 27
Enhancement of Antenna Performance by Reactive Loadingp. 28
VSWRp. 28
Power Gainp. 29
Scattering Cross Sectionp. 30
Antenna Characteristic Analysis Program (ACAP)p. 31
Input of Antenna Geometryp. 32
Wire Connection Treatmentp. 32
Output of Antenna Characteristicsp. 34
Conclusionsp. 37
ACAP Programp. 39
Evaluation of the Basic Performance of Microstrip Antennasp. 53
Introductionp. 53
Basic Properties of Microstrip Antennasp. 53
Radiation Patternp. 53
Resonant Frequency of the MSAp. 57
Unloaded Q(Q[subscript o]), Radiation Efficiency [eta] Bandwidth (BW), and Directivity Gain (G[subscript d])p. 58
Impedance Characteristicsp. 61
Influence of the Finite Ground Plane on Radiation Patternp. 66
Estimation of the E-Plane Patternp. 67
Estimation of the H-Plane Patternp. 68
Circularly Polarized Microstrip Antennasp. 68
Characteristics of Small Microstrip Antennasp. 71
Basic Configurationp. 71
Radiation Efficiency [eta] and Frequency Bandwidth (BW)p. 72
Shorted-Plane-Controlled Type of MSAp. 73
Beam Shaping of Microstrip Antennasp. 75
Some Considerations on Planar Arrays Composed of MSAp. 78
Conclusionsp. 80
Key Points in the Design and Measurement of Microstrip Antennasp. 83
Introductionp. 83
Basic Theoryp. 84
Transmission-Line Modelp. 84
Cavity Modelp. 97
Design Procedurep. 111
Typical Design Procedurep. 111
Design Procedure Considering Bandwidthp. 113
Design Examplep. 119
Error Estimationp. 124
Wideband Techniquesp. 126
Various Techniquesp. 126
Some Problems and Corresponding Measures That Can Be Takenp. 136
Circular Polarizationp. 144
Dual-Feed Typep. 144
Single-Feed Typep. 144
Conclusionsp. 155
Analysis of Planar Inverted-F Antennas and Antenna Design for Portable Radio Equipmentp. 161
Introductionp. 161
Analysis by Spatial Network Method (SNM)p. 162
Analysis Modelp. 162
Effects of Analysis Area Sizep. 163
Numerical Resultsp. 165
Electric Field and Current Distributionp. 165
Resonant Frequencyp. 169
Bandwidthp. 174
Design of a Planar Inverted-F Antenna on a Portable Radio Housingp. 175
Resonant Frequencyp. 175
Bandwidthp. 175
Effective Gain in Mobile Radio Environmentp. 177
Conclusionsp. 179
Design and Analysis of Small-Aperture Antennasp. 181
Introductionp. 181
Directivity Decomposition of Aperture Antennasp. 184
Directivity Calculation Methodp. 187
Remarks on Radiated Field Calculation of Small-Aperture Antennasp. 190
Problemsp. 190
Diffraction Effects at Reflector Edgesp. 190
Applicability of the Aperture Field Method in Relation to the Distance From an Antennap. 192
Geometrical Theory of Diffraction (GTD) and its Applicabilityp. 194
Examples of Small-Aperture Antenna Designp. 196
Axisymmetrical Cassegrain Antennap. 196
Shaped Offset Dual-Reflector Antennap. 200
Short Backfire Antennap. 202
Conclusionsp. 205
Design and Measurement of Small AM Broadcasting Antennasp. 207
Introductionp. 207
Designp. 207
Constructionp. 207
Feed-Point Impedancep. 209
Lower Limit of Antenna Efficiency Regulated by the Ministry of Posts and Telecommunications (Japan)p. 210
Antenna Efficiencyp. 211
Measurementp. 214
Ground Conductivity and Grounding Resistancep. 214
Impedance Meterp. 215
Antenna Efficiencyp. 215
Techniques for Small AM Broadcasting Antennasp. 216
Base-Insulated and Guyed Antennasp. 217
Base-Insulated and Self-Supporting Antennasp. 218
Base-Grounded and Self-Supporting Antennasp. 219
Mutual Coupling Effects Between Antenna Elements on Antenna Performancep. 221
Introductionp. 221
The Effects of Mutual Coupling Between Antenna Elements on Antenna Performancep. 221
Reduction of Mutual Coupling Effectsp. 225
Analysis and Measurement of Mutual Couplingp. 228
Analysis of Mutual Couplingp. 228
Measurement of Mutual Couplingp. 233
Use of Mutual Coupling Effectsp. 236
Conclusionsp. 238
Some Considerations of Small Antenna Measurementsp. 241
Introductionp. 241
Definition of Small Antennasp. 242
Things to Consider Prior to Measurementp. 243
Small Antennasp. 243
Antenna Structurep. 246
Balanced-Unbalanced Transformationp. 247
The Effect of Nearby Conducting Materialsp. 249
The Accuracy, Precision, and Stability of the Instrumentp. 250
Other Factorsp. 250
Measurementsp. 251
Impedancep. 251
Radiation Patternp. 254
Efficiencyp. 257
Gainp. 262
Related Subjectsp. 263
Environmental Effectsp. 263
Skill in Performing Measurementp. 264
Conclusionsp. 264
Indexp. 267
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780890064863
ISBN-10: 0890064865
Series: Antenna library
Audience: General
Format: Hardcover
Language: English
Number Of Pages: 288
Published: 19th October 1991
Publisher: Artech House Publishers
Country of Publication: US
Dimensions (cm): 22.9 x 15.2  x 2.0
Weight (kg): 0.59