Artech House Antenna Library

Theory and CAD

By: J. Uher, Jens Bornemann, Uwe Rosenberg

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Hardcover | 1 December 1993

At a Glance

Hardcover
476 Pages

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24.13 x 16.51 x 2.54

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This book delivers an in-depth examinations of the three basic field-theoretical methods used for the design aid of different waveguide components. You'll find CAD algorithms, examples of their applications, and operational principles of various components used in antenna feed systems.

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You Can Find This Book In

Non-Fiction Science Physics Classical Mathematics Wave Mechanics including Vibration & Acoustics Computing & I.T.Graphical & Digital Media Applications Computer-Aided Design CAD Engineering & Technology Energy Technology & Engineering Electrical Engineering Electronics & Communications Engineering

Electronics Engineering Microwave Technology Communications Engineering & Telecommunications

Preface	p. xiii
Introduction	p. 1
Selected Numerical Methods	p. 9
Mode-Matching Techniques	p. 9
Introduction	p. 9
Background	p. 10
H-Plane Discontinuity	p. 12
Normalization	p. 14
Generalized Scattering Matrix	p. 15
Relative Convergence	p. 16
Discontinuity of Finite Length	p. 18
Cascading Scattering Matrices	p. 19
Intermediate Region	p. 20
Waveguide Bifurcation	p. 20
E-Plane Discontinuity	p. 25
T-Junctions (Resonator Method)	p. 27
E-Plane T-Junction	p. 27
H-Plane T-Junction	p. 31
Double-Plane Steps	p. 32
TE[characters not producible] Mode Analysis	p. 33
TE[subscript mn]-TM[subscript mn] Mode Analysis	p. 34
Different Cross-Sections	p. 37
Circular Cross-Section	p. 37
Cross-Sections of Unknown Eigenfunctions	p. 39
Other Mode-Matching Techniques	p. 40
Conservation of Complex Power	p. 40
Admittance Matrix Formulation	p. 40
Appendix to Section 2.1	p. 42
References to Section 2.1	p. 50
Finite-Element Method	p. 51
Introduction	p. 51
Field Formulation	p. 52
Variational Methods	p. 54
Rayleigh-Ritz Method	p. 58
Finite-Element Method	p. 59
Two-dimensional Scalar Scattering Problem	p. 59
Scattering Parameters	p. 63
Infinite Elements	p. 63
Uniform Guiding Structures	p. 63
Characteristic Impedance	p. 66
Summary of FEM Features	p. 67
A FEM Computer Program for Multi-Conductor Lines	p. 68
Acknowledgement	p. 68
Appendix to Section 2.2	p. 69
References to Section 2.2	p. 71
The Transmission Line Matrix Method	p. 73
Fundamentals of the TLM Method	p. 73
Modeling Microwave Structures with the TLM Method	p. 76
Modeling Boundaries	p. 76
Modeling Ports	p. 77
Modeling Materials	p. 78
Regular versus Variable TLM Mesh	p. 79
Time- and Frequency-Domain Information	p. 81
Computation of Microwave S-Parameters	p. 81
Errors and Corrections	p. 82
Summary of the TLM Method	p. 82
Application of the Three-Dimensional Symmetrical Condensed Node TLM Method to Computation of Microwave S-Parameters	p. 84
Appendix to Section 2.3	p. 86
References to Section 2.3	p. 101
Waveguide Components for Antenna Feed Systems	p. 103
Transmission Lines	p. 104
Definitions	p. 104
Electromagnetic Wave Modes (Eigenmodes, Eigenvectors)	p. 104
Wave Propagating Media (Waveguides, Transmission Structures)	p. 105
Propagation Constants (Wave Numbers, Eigenvalues)	p. 105
Guided Wavelength	p. 106
Dispersion Characteristics	p. 106
Characteristic Impedance	p. 107
Losses	p. 108
Power Handling Capability	p. 108
Rectangular Waveguides	p. 109
Modes in Rectangular Waveguides	p. 110
Fundamental Mode in Rectangular Waveguide	p. 112
Mode Dispersion	p. 112
Characteristic Impedance	p. 114
Losses	p. 114
Power Handling Capability	p. 115
Ridge Waveguides	p. 115
Modes in Ridge Waveguides	p. 116
Dispersion Characteristics	p. 117
Characteristic Impedance	p. 117
Losses	p. 118
Power Handling Capability	p. 120
Circular Waveguides	p. 120
Modes in Circular Waveguides	p. 121
Dispersion Characteristics	p. 124
Characteristic Impedance	p. 124
Losses	p. 124
Power Handling Capability	p. 126
Coaxial Waveguides	p. 127
Circular Coaxial Lines	p. 127
Modes in Circular Coaxial Lines	p. 127
Fundamental (TEM) Mode in Coaxial Waveguide	p. 130
Dispersion Characteristics of the Coaxial Waveguide	p. 130
Characteristic Impedance	p. 130
Losses	p. 131
Power Handling Capability	p. 132
Square (Rectangular) Coaxial Waveguides	p. 133
Modes in Square Coaxial Line	p. 133
Dispersion Characteristics	p. 134
Characteristic Impedance	p. 136
Losses	p. 137
Power Handling Capability	p. 138
References to Section 3.1	p. 139
Impedance Transformers and Matching Circuits	p. 139
Impedance-Matching Concepts and Methods	p. 140
Matching a Real Impedance to Another Real Impedance	p. 142
Matching a Real to a Complex Impedance	p. 145
Matching With a Section of Transmission Line and a Quarter-Wave Transformer	p. 145
Single Stub Matching	p. 146
Double-Stub Matching	p. 147
Practical Impedance Transformers--Design Methods and Examples	p. 148
Impedance Transformers in Rectangular (Square) Waveguides	p. 148
Rectangular-to-Ridge Waveguide Impedance Transformer	p. 151
Circular Waveguide Transformers	p. 154
Stepped Dielectric Slab Transformers	p. 157
Appendix to Section 3.2	p. 160
References to Section 3.2	p. 162
Waveguide Bends	p. 163
Field Analysis of Waveguide Bends	p. 165
Design of Waveguide Bends	p. 165
H-Plane Bends	p. 166
E-Plane Bends	p. 169
References to Section 3.3	p. 174
Microwave Filters	p. 174
A Summary of Development in Theory and Design Methods for Microwave Filters	p. 174
A Generalized CAD Method for Microwave Filters	p. 176
Performance Parameters of a Microwave Filter	p. 176
Synthesis	p. 177
Analysis	p. 183
Optimization	p. 184
CAD of Selected Types of Direct-Coupled-Resonator Filters	p. 185
Waveguide Stub Filters	p. 185
E-Plane Filters	p. 190
Corrugated Waveguide Filters	p. 200
Evanescent-Mode Waveguide Filters	p. 207
Circular Cavity Filters	p. 212
Synthesis of Filter Characteristics and Equivalent Circuits	p. 217
Approximation of Filter Characteristics	p. 217
Synthesis of Equivalent Circuits	p. 220
Degenerate (Multimode) Cavity Design	p. 221
Cavity Modes	p. 221
Dual Mode Cavity Design	p. 224
Triple and Quadruple Mode Cavity Design	p. 224
Tuning and Coupling of Degenerate Cavity Modes	p. 225
Filter Couplings--Design and Realization	p. 226
Intercavity and Interface Couplings	p. 226
Offset Slots and Anticoupling	p. 233
Spurious Mode Control	p. 237
Cavity Arrangement and Coupling Configurations	p. 237
Cavity Filter Design Technology	p. 247
References to Section 3.4	p. 248
Multiplexers	p. 252
Circulator/Filter Chain	p. 252
Directional Filter Multiplexing Approach	p. 259
Manifold Multiplexing Technique	p. 264
Millimeter-Wave Multiplexers	p. 278
E-Plane T-Junction-type Diplexer	p. 283
H-Plane T-Junction-type Diplexer	p. 289
H-Plane Divider-type Diplexer	p. 293
E-Plane Divider-type Multiplexers	p. 294
E-H-Plane Divider-type Quadruplexer	p. 295
H-Plane Branching-type Multiplexers	p. 296
Other Configurations	p. 300
Appendix to Section 3.5	p. 304
References to Section 3.5	p. 306
Directional Couplers	p. 307
Introduction	p. 307
Basic Coupler Sections and Mechanisms	p. 309
Contra-Directional Couplers	p. 311
Co-Directional Couplers	p. 312
Small-Aperture Couplers	p. 314
Quarter-Wave Transformer Prototype	p. 314
Contra-Directional (TEM-Line) Couplers	p. 316
Aperture Couplers	p. 320
Analysis	p. 320
Circular Apertures	p. 322
Rectangular Apertures	p. 323
Design	p. 325
Branch-Guide Couplers	p. 329
Conclusions	p. 339
Appendix to Section 3.6	p. 340
References to Section 3.6	p. 342
Power Dividers and Combiners	p. 343
Introduction	p. 343
Basic Waveguide Power Dividers/Combiners	p. 345
Waveguide E-Plane Power Dividers/Combiners	p. 346
Waveguide H-Plane Power Divider/Combiner	p. 351
Waveguide E-H-Plane Power Divider/Combiner	p. 353
Other Waveguide E- or H-Plane Power Dividers	p. 354
Radial Waveguide Power Dividers/Combiners	p. 355
Hybrids as Power Dividers/Combiners	p. 360
Hybrid (Magic) T-Junction	p. 360
Turnstile Junction	p. 361
Hybrid Rings	p. 362
Variable Power Dividers/Combiners	p. 363
Considerations for Power Combiners	p. 367
References to Section 3.7	p. 369
Polarization Discrimination Components and Equipment	p. 371
Linear and Circular Polarizations	p. 372
Linear Polarization	p. 372
Circular Polarization	p. 374
Orthomode Transducer	p. 377
Standard Narrowband OMT Design (OMT Class 1)	p. 382
Narrowband Design Type 1 (Taper/Branching OMT)	p. 382
Narrowband Deisgn Type 2 (Septum/Branching OMT)	p. 385
Narrowband Design Type 3 (Acute Angle or Longitudinal Orthomode Branching)	p. 391
Narrowband Design Type 4 (Short Circuited Common Waveguide)	p. 393
Broadband OMT Design (OMT Class 2)	p. 395
Broadband OMT Design Type 1 (Distinct Dual Junction Type)	p. 397
Broadband OMT Design Type 2 (Equal Dual Junction Type)	p. 400
Four (Multi) Port Combiner (OMT Class 3)	p. 403
Combiner Design Type 1 (Modular Approach)	p. 404
Combiner Design Type 2 (Unsymmetrical Branching Approach)	p. 405
Combiner Design Type 3 (Symmetrical Branching Approach)	p. 413
Circular Polarizing and Discrimination Equipment	p. 418
Conventional Polarizers	p. 419
Conventional Polarizers, Group 1	p. 421
Corrugated Waveguide Polarizers	p. 426
Dielectric Slab Waveguide Polarizers	p. 428
Conventional Polarizers, Group 2 (Septum Polarizer)	p. 432
Polarization Discrimination by OMT and Power-Splitter	p. 435
Circularly Polarized Four (Multi) Port Combiners	p. 436
Four (Multi) Port Combiners with Polarizers	p. 438
Circularly Polarized Four (Multi) Port Combiners with Proper RF Circuitries	p. 440
References to Section 3.8	p. 443
Table of Contents provided by Syndetics. All Rights Reserved.

Artech House Antenna Library

Theory and CAD

At a Glance

Hardcover

Shipping

How to return your order

Defective items

You Can Find This Book In

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