This practical new resource provides you with a much wider choice of analytical solutions to the everyday problems you encounter in electromagnetic modeling. The book enables you to use cutting-edge method-of-moments procedures, with new theories and techniques that help you optimize computer performance in numerical analysis of composite metallic and dielectric structures in the complex frequency domain.
For the first time, comparisons and unique combinations of techniques bring the elements of flexibility, ease of implementation, accuracy, and efficiency into clear view. Numerous examples are given ï· from simple to complex ï· including scatterers, antennas and microwave circuits. You get an in-depth presentation of intricate models, including TV UHF panels, horn, parabolic, microstrip patch antennas, and many others. More than 800 equations and 150 illustrations support key topics.
Author(s): Branko Kolundzija, Antonije Djordjevic
Series: Artech House antennas and propagation library
Publisher: Artech House
Year: 2002
Language: English
Pages: 420
City: Boston
Electromagnetic Modeling of Composite Metaqllic and Dielectric Structures......Page 1
Contents v......Page 5
1 Introduction 1......Page 13
1.1 MoM as a General Approach to Solving Electromagnetic-Field Problems 2......Page 14
1.2 MoM/SIE, MoM/VIE, and FEM 4......Page 16
1.3 Basic Classes of Composite Metallic and Dielectric Structures (Material Strucutres) 6......Page 18
1.4 Methods for Analysis of Thin-Wire Structures 8......Page 20
1.5 Methods for the Analysis of Metallic Structures 11......Page 23
1.6 Methods for the Analysis of Composite Metallic and Dielectric Structures 14......Page 26
1.7 What Is New in This Book? 15......Page 27
1.8 Survey of Chapters 18......Page 30
References 20......Page 32
2.1 Formulation of Deterministic-Field Problems 27......Page 39
2.2 Linear Operator Equation 30......Page 42
2.3 Solution of Integral Equations 33......Page 45
2.4 Solution of Differential Equations 66......Page 78
2.5 Choosing the Optimal Method 82......Page 94
2.6 Summary 83......Page 95
References 84......Page 96
3.1 Maxwell's Equations 87......Page 99
3.2 Retarded Potentials 93......Page 105
3.3 Field Vectors 95......Page 107
3.4 Volume Equivalence Principle 105......Page 117
3.5 Duality Relations Between Electric and Magnetic Quantities 107......Page 119
3.6 Boundary Conditions 108......Page 120
3.7 Formulation of the Basic Field Problem in the Frequency Domain 113......Page 125
3.8 Poynting Theorem 115......Page 127
3.9 Surface Equivalence Principle 116......Page 128
3.10 Uniqueness Theorem 119......Page 131
3.11 Summary 125......Page 137
References 126......Page 138
4 Field Integral Equations 127......Page 139
4.1 BIEs for Metallic Structures 128......Page 140
4.2 BIEs for Combined Metallic and Dielectric Structures 162......Page 174
4.3 CIEs 176......Page 188
4.4 Hybrid Methods 188......Page 200
4.5 Summary 196......Page 208
References 197......Page 209
5 Geometrical Modeling 203......Page 215
5.1 Wire Structures 204......Page 216
5.2 Metallic and Dielectric Surfaces 214......Page 226
5.3 Dielectric Volumes 226......Page 238
5.4 Wire-to-Plate Junctions and Related Structures 229......Page 241
5.5 Automatic Parameterization of 3-D Geometries 234......Page 246
5.6 Automatic Segmentation of Electrically Large Surface Patches 238......Page 250
5.7 Summary 243......Page 255
References 245......Page 257
6 Approximation of Currents and Fields 251......Page 263
6.1 Approximation of Currents Along Wires 252......Page 264
6.2 Approximation of Currents over Generalized Quadrilaterals 271......Page 283
6.3 Approximation of Currents over (Generalized) Triangles 297......Page 309
6.4 Generalized Hexahedrons 304......Page 316
6.5 Generalized Tetrahedrons 310......Page 322
6.6 Approximation of Currents and Fields Across Junctions of Inompatible Building Elements 311......Page 323
6.7 Comparison of MoM/SIE, MoM/VIE, and FEM Based on Topological Analysis 314......Page 326
6.8 Summary 318......Page 330
References 319......Page 331
7.1 Free-Space Waves 323......Page 335
7.2 Voltage and Current Generators 325......Page 337
7.3 Guided Waves 329......Page 341
7.4 Tranfer of Excitation 337......Page 349
References 339......Page 351
8.1 Testing of Vector Equations in Nonorthogonal Coordinate Systems 341......Page 353
8.2 Weighted Point-Matching Method 344......Page 356
8.3 Galerkin Method 354......Page 366
8.4 Choice of Optimal Test Procedure 365......Page 377
References 367......Page 379
9 Practical Examples 369......Page 381
9.1 TV-UHF Panel Antenna with Radome 370......Page 382
9.2 Horn Antennas 373......Page 385
9.3 Paraboloidal Reflector Antenna with Feed and Feed Struts 377......Page 389
9.4 Stacked Patch Antenna Mounted on an Airplane 380......Page 392
9.5 Base-Station Antenna with Cosecant Characteristic at 60 GHz 383......Page 395
References 388......Page 400
About the Authors 391......Page 403
Index 393......Page 405
