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Microwave Transmission Line Couplers : Artech House Microwave Library - J.A.G. Malherbe

Microwave Transmission Line Couplers

Artech House Microwave Library

Hardcover

Published: 19th December 1988
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A reference for the engineer interested in the design procedure. Covers practical considerations with complete design examples. The appendices contain two simple computer programs for the analysis of symmetrical three and four-port networks, and coupled-line configuration applications for replicatio

Prefacep. xi
Basic Principles and Definitionsp. 1
Introductionp. 1
Network Parametersp. 2
Scattering Parametersp. 2
Odd and Even Networksp. 3
Transmission Line Propertiesp. 5
Transmission Line Network Modelp. 6
ABCD Parametersp. 8
Interrelationshipp. 10
Definition of Coupler Parametersp. 10
Physical Structuresp. 13
Analysisp. 15
Referencesp. 15
Branch-Line Directional Couplers and Power Dividersp. 17
Introductionp. 17
Scattering Parameter Synthesisp. 17
Synthesis of a 180[degree] Hybrid Couplerp. 19
90[degree] Branch-line Couplerp. 22
Power Dividerp. 23
Branch-line Hybrid, Odd- and Even-Mode Analysisp. 24
Even- and Odd-Mode Admittancesp. 25
Performance at Band Centerp. 25
Variation of Parameters with Frequencyp. 28
Limits on Physical Realizationp. 28
Rat-race Hybridsp. 31
Odd- and Even-Mode Analysisp. 32
Conditions at Band Centerp. 33
Stepped Hybrid-Ring Directional Couplerp. 37
Other Realizationsp. 39
Power Dividersp. 42
Equal-Split Compensated Power Dividersp. 44
Power Dividers with Unequal Power Splitp. 47
Referencesp. 52
Wideband Connected-Line Couplersp. 53
Introductionp. 53
Wideband Branch-line Couplersp. 54
Matrix Properties of Symmetrical Couplersp. 54
The Synthesis Problemp. 57
Butterworth Responsep. 58
Chebyschev Responsep. 58
Synthesis Procedurep. 60
Prototypesp. 61
Design Examplep. 64
Wideband Power Dividersp. 65
Uncoupled Linesp. 67
Design Formulas for N = 2p. 68
General Design Formulas for N [greater than or equal] 3p. 71
Power Dividers with Coupled Linesp. 74
Coupled-Line Equationsp. 78
Design Examplep. 79
Referencesp. 82
Single-Section Coupled-Line Directional Couplersp. 83
Introductionp. 83
Coupler Actionp. 83
Responsesp. 83
Isolationp. 86
Matchp. 86
Coupler Conditionp. 86
Couplingp. 87
Couplers with Unequal Characteristic Impedancesp. 89
Multiple Coupled Linesp. 91
Lange Couplerp. 92
Design Examplesp. 94
Stripline Couplers, Low Couplingp. 94
Offset Parallel-coupled Striplinep. 95
Parallel-Coupled Barsp. 96
Coupled Microstrip Linep. 97
Lange Couplerp. 98
Tandem Connection of Directional Couplersp. 99
Referencesp. 100
Wideband Stepped Coupled-Line Couplersp. 101
Introductionp. 101
Cascade Connection Equivalencep. 101
Equivalent Flow Graph of Two Sectionsp. 101
Unit Element Equivalent Circuitp. 105
Stepped Asymmetric Couplersp. 107
Prototype Synthesis Procedurep. 107
Cascade Network Propertiesp. 114
Synthesis Examplep. 115
Tables for Asymmetric Couplersp. 119
Stepped Symmetrical Couplersp. 126
Special Equiripple Polynomialsp. 126
Prototype Synthesis Procedurep. 127
Network Synthesisp. 129
Tables for Symmetrical Couplersp. 130
Referencesp. 134
Ultrawideband Couplers With Continuously Varying Cross Sectionp. 135
Introductionp. 135
Tapered-Line Magic-Tp. 136
Equivalent Circuitp. 137
Tapered-Line Transformerp. 139
Design Examplep. 142
Symmetrical 90[degree] Directional Couplersp. 142
Couplers with Periodic Zeros in p([mu])p. 145
Design Examplep. 149
Asymmetric Chebyschev High-Pass Couplersp. 152
Synthesis Procedurep. 152
Polynomial Representationp. 154
Design Examplep. 154
Referencesp. 157
Network Analysis Programsp. 159
Introductionp. 159
Program Symfourp. 159
Method of Calculationp. 159
Preparationp. 160
Runningp. 161
Analysis Examplesp. 163
Branch-line Hybridp. 163
Optimized Hybrid Ringp. 165
Wideband Branch-line Couplerp. 170
Coupled-Line Sectionp. 171
Program Symthreep. 172
Method of Calculationp. 172
Preparation and Runningp. 173
Two-Section Power Dividerp. 174
Program Listingsp. 176
Symfourp. 176
Symthreep. 182
Coupled-Line Parametersp. 189
Introductionp. 189
Materialsp. 189
Conductor Thicknessp. 190
Substratesp. 190
Parallel Coupled Linesp. 191
Equationsp. 191
Design Datap. 193
Limits on Couplingp. 195
Offset Parallel-Coupled Striplinesp. 195
Equationsp. 195
Tight Couplingp. 196
Loose Couplingp. 197
Design Datap. 199
Limits on Couplingp. 200
Parallel Coupled Barsp. 201
Equationsp. 201
Design Datap. 203
Limits on Couplingp. 204
Coupled Microstrip Linesp. 205
Equationsp. 205
Design Datap. 207
Limits on Couplingp. 208
Single Linesp. 208
Program Listing: Ldimsp. 209
Referencesp. 215
Indexp. 217
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780890063002
ISBN-10: 0890063001
Series: Artech House Microwave Library
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 232
Published: 19th December 1988
Publisher: Artech House Publishers
Country of Publication: US
Dimensions (cm): 22.9 x 15.2  x 1.7
Weight (kg): 0.51