Advances in Electronics and Electron Physics (eBook)

Front Cover 1
Advances in Electronics and Electron Physics, Volume 82 4
Copyright Page 5
CONTENTS 6
Contributors 8
Preface 10
Chapter 1. CAD in Electromagnetism 14
I. Introduction 14
II. Static Fields 17
III. Eddy Current Fields 33
IV. Waveguides and Cavities 51
V. Galerkin’s Method 56
VI. Application of the Finite Element Method 76
Acknowledgments 108
References 108
Chapter 2. Speech Coding 110
I. Introduction 110
II. Signal Processing in Speech Coding 123
III. Speech Coding Systems 160
IV. Future Research Directions 201
Acknowledgments 202
References 202
Chapter 3. Bandgap Narrowing and Its Effects on the Properties of Moderately and Heavily Doped Germanium and Silicon 210
I. Introduction 210
II. Calculations of BGN in n-Type Silicon and n-Type Germanium 216
III. Impurity Concentration Fluctuations and Band Tails 245
IV. Effect of Bandgap Narrowing on Optical Properties 257
V. Summary of Important Results 281
Acknowledgments 283
Appendix 283
References 285
Chapter 4. The Rectangular Patch Microstrip Radiator-Solution by Singularity Adapted Moment Method 290
I. Introduction 290
II. The Spectral Domain Presentation 292
III. The Moment-Method Formulation 299
IV. Two-Dimensional Solution 315
V. Conclusion 330
Appendix A. Far fields in Two Polarizations 330
Appendix B. Evaluation of Typical Matrix Elements 332
References 337
Chapter 5. Some Recent Advances in Multigrid Methods 340
I. Introduction 341
II. The Fundamental Multigrid Algorithim 342
III. Preconditioning by Multigrid 360
IV. Methods Based on Space Decomposition 362
V. Multigrid in Elasticity 370
VI. Multigrid for Mixed Problems 372
VII. Multigrid for High Order and Spectral Methods 373
VIII. Eigenvalue Problems 376
IX. Multigrid and Parallel Computing 377
X. Some Other Multigrid Developments 378
XI. Multigrid Software 378
AppendixA. PLTMG 378
Appendix B. MADPACK 379
Appendix C. MUDPACK 379
Appendix D. MGDl 380
Appendix E. MG00 381
Appendix F. AMG 381
Appendix G. BOXMG 381
References 381
Index 392