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Nonuniform Line Microstrip Directional Couplers and Filters : Microwave Library - Sener Uysal

Nonuniform Line Microstrip Directional Couplers and Filters

Microwave Library

Hardcover

Published: 1st October 1993
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This text sets out to provide a source of design techniques for leading to reduction in expense, size and weight of directional couplers and filters. It also gives step-by-step procedures for enhancing circuit performance. Numerous design examples and verified measured results for ultrawideband, bandpass, periodic and co-directional couplers are provided.

Prefacep. xiii
Introductionp. 1
Introductory Commentsp. 1
Outline of the Bookp. 2
Uniform Microstrip Linesp. 3
Uniform Coupled Linesp. 5
Nonuniform Linesp. 9
Nonuniform Coupled Linesp. 12
Referencesp. 14
Review of Microstrip Directional Couplers and Filtersp. 17
Introductionp. 17
Practical Limitations in Microstrip Directional Couplersp. 17
Practical Limitations in Microstrip Filtersp. 19
Types of Microstrip Couplersp. 19
Types of Microstrip Filtersp. 29
Applications of Directional Couplers and Filtersp. 29
Referencesp. 33
Synthesis of Nonuniform Line Directional Couplersp. 37
Introductionp. 37
Synthesis of Uniform Coupled-Line Parametersp. 37
Phase Velocity Compensationp. 39
Computed Design Curves for Some Important Substratesp. 41
Design Curves for Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 41
Design Curves for Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.25 mmp. 43
Design Curves for Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.1 mmp. 43
Design Curves for Interdigitated Couplers on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 49
Design Curves for GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.2 mmp. 49
Design Curves for Interdigitated Couplers on GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.2 mmp. 54
Design Curves for GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.1 mmp. 54
Design Curves for Lanthalum Gallate with [epsilon][subscript r] = 24.5 and h = 0.25 mmp. 54
Design Curves for Barium Tetratitanate Substrate with [epsilon][subscript r] = 37 and h = 0.635 mmp. 61
Design Curves for RT-Duroid Substrate with [epsilon][subscript r] = 10.5 and h = 0.2 mmp. 61
Synthesis Functions for Nonuniform Coupled Linesp. 61
Referencesp. 67
Design and Construction of Ultrawideband Directional Couplersp. 69
Introductionp. 69
Design Procedurep. 69
Nonuniform Coupler Layoutp. 74
Interdigitated Center Sectionp. 79
Design Examplesp. 81
2-20 GHz, -20 dB Coupler on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 82
2-20 GHz, -14 dB Coupler on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 84
2-20 GHz, -3 dB Coupler on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 85
1-6 GHz, -3 dB Coupler on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 91
3-22.5 GHz, -10 dB Coupler on GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.2 mmp. 96
3-22.5 GHz, -3 dB Coupler on GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.2 mmp. 99
Referencep. 99
Sensitivity Analysis for Nonuniform Line Directional Couplersp. 101
The Effect of Nonuniform Slopes of Coupled Linesp. 101
The Effect of Fabrication Tolerancesp. 104
The Effect of Bond Wires and Transition from Double Coupled Lines to an Interdigitated Center Sectionp. 105
The Effect of [Delta]lp. 110
The Effect of an Interdigitated Sectionp. 111
The Effect of Lossesp. 113
Referencesp. 113
Bandpass Nonuniform Line Directional Couplersp. 115
Introductionp. 115
Design Procedurep. 115
Modifications of p(x)p. 117
Introducing a Dummy Channel for Realizabilityp. 118
Adding a Constant to p(x)p. 118
Adding a Linear Function to p(x)p. 119
Multiplying Even-Mode Impedance by a Constantp. 119
Selective (Regional) Optimization of p(x)p. 120
Design Examplesp. 121
K[subscript u]-band, -3 dB Bandpass Coupler on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 121
X-band, -3 dB Bandpass Coupler on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 123
K[subscript a]-band, -8.34 dB Bandpass Coupler on GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.2 mmp. 130
75-95 GHz, -3 dB Bandpass Coupler on GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.1 mmp. 130
Multioctave Bandpass Couplersp. 133
Multilevel Couplersp. 134
Referencesp. 137
Bandpass Nonuniform Line Directional Filtersp. 139
Introductionp. 139
Design Principlesp. 140
Matched Bandpass Filtersp. 141
Design Examplesp. 142
X-band Bandpass Filter on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 142
Wideband, Medium-Loss Bandpass Filters on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 144
K[subscript u]-Band Bandpass Filters on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.25 mmp. 145
Cascaded or Tandem Connected Filters with Nonidentical Designsp. 147
Bandpass Filters with an Interdigitated Sectionp. 148
Reflection-Type Bandpass Filtersp. 151
Design Examplesp. 155
K[subscript a]-Band Bandpass Filter on GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.2 mmp. 155
K[subscript u]-Band Bandpass Filter on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.25 mmp. 156
X-Band Bandpass Filters on Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mmp. 156
Periodic Nonuniform Line Coupler-Filters and Multiplexersp. 159
Introductionp. 159
Design Principlesp. 160
Design Examples for Periodic Coupler-Filters on Alumina Substratep. 162
Reflection-Type Periodic Filtersp. 164
Multiplexersp. 168
Design of Quadruplexers Using Almost 0 dB Matched Bandpass Filtersp. 168
Design of Quadruplexers Using -3 dB Matched Coupler-Filtersp. 169
Design of Quadruplexers Using -3 dB Reflection-Type Coupler-Filtersp. 170
Referencesp. 172
Codirectional Nonuniform Line Directional Couplersp. 173
Introductionp. 173
Analysis of Codirectional Couplersp. 174
Design Curves for Codirectional Couplersp. 176
Even- and Odd-Mode Phase Velocities versus Coupling Coefficient for Alumina Substrate with [epsilon][subscript r] = 9.9 and h = 0.635 mm, 0.24 mm, and 0.1 mmp. 177
Even- and Odd-Mode Phase Velocities versus Coupling Coefficient for GaAs Substrate with [epsilon][subscript r] = 12.9 and h = 0.2 mm and 0.1 mmp. 178
Even- and Odd-Mode Phase Velocities versus Coupling Coefficient for RT-Duroid Substrate with [epsilon][subscript r] = 10.5 and h = 0.2 mmp. 181
Even- and Odd-Mode Phase Velocities versus Coupling Coefficient for Barium Tetratitanate Substrate with [epsilon][subscript r] = 37 and h = 0.635 mmp. 183
Design Examplesp. 185
Wiggly Codirectional Couplersp. 188
Design Examplesp. 189
Wideband Codirectional Couplersp. 191
Design Examplep. 195
Tandem Connection of Codirectional Couplersp. 198
Cascaded Codirectional Couplersp. 198
Referencesp. 201
Applications of Nonuniform Line Directional Couplersp. 203
Introductionp. 203
Fixed Attenuator, Crossover, and dc-Blockp. 204
Fixed Phase Shifterp. 205
Continuously Variable Analog Phase Shifterp. 206
Matching Networksp. 210
Beam-Forming Networks for Phased Array Antennasp. 213
[Sigma]-[Delta] Circuitsp. 217
Monopulse Comparatorsp. 219
Mixersp. 221
Other Applicationsp. 222
Referencesp. 224
Indexp. 225
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780890066836
ISBN-10: 0890066833
Series: Microwave Library
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 248
Published: 1st October 1993
Publisher: Artech House Publishers
Country of Publication: US
Dimensions (cm): 22.9 x 15.2  x 1.7
Weight (kg): 0.54