CONTENTS
ABSTRACT-SOMMARIO . . . 1
INDEX TERMS . . . 3
INTRODUCTION . . . 5
1. GREEN’S FUNCTIONS IN LAYERED MEDIA . . . 7
1.1. Introduction . . . 7
1.2. Spectral Domain Green’s Functions. . . . 8
1.3. Closed-Form Green’s Functions in the Spatial Domain . . . . 20
2. INTEGRAL EQUATIONS AND METHOD OF MOMENTS . . . 35
2.1. Introduction. . . 35
2.2. The Method of Moments . . . 35
2.3. Basis Functions . . . . . . . . . . . 38
2.3.1. Subdomain Basis Functions . . . . . . . 39
2.3.2. Entire Domain Basis Functions . . . . . . . 40
2.3.3. High Level Basis Functions. . . . . . . 43
2.4. Testing Functions. . . . . . . . . . . . 43
2.5. The Rao-Wilton-Glisson (RWG) Basis Functions . . . . . . . 44
2.6. Solution of the EFIE via the Method of Moments . . . . . . . . 48
2.7. Testing Procedure with the DGFs . . . . . . . . . . . . 55
2.8. Numerical Results . . . . . . . . . . . 56
3. A FREQUENCY INTERPOLATION ALGORITHM FOR PLANAR MICROSTRIP STRUCTURES . . . 61
3.1. Introduction. . . 61
3.2. Spline Fitting Approach . . . . 61
3.3. Numerical Results . . . . . . . . . . . 67
3.3.1. Edge coupled microstrip filter . . . . . . . 69
3.3.2. Bandpass Stepped Filter. . . . . . . 76
3.3.3. Three-Ring Resonator Filter. . . . . . . 83
4. AN EFFICIENT MOM ANALYSIS OF ELECTRICALLY LARGE CIRCUITS ETCHED IN LAYERED MEDIA . . . . . . . . . . . . 91
4.1. Introduction. . . 91
4.2. The Characteristic Basis Function Method . . . 92
4.3. Numerical Results . . . . . . . . . . . 98
4.3.1. 2x1 Planar Patch Array. . . .. . . . . . . 98
4.3.2. 2x2 Planar Patch Array. . .. . . . . . . 103
4.3.3. 4x2 Planar Patch Array. . .. . . . . . . 108
4.4. A New Technique for Efficient Simulation of Microstrip Circuits . . . 111
4.5. Numerical Results . . . . . . . . . . . 119
CONCLUSIONS . . . 129
REFERENCES . . . . . . . 131
ACKNOWLEDGEMENTS. . . 139
APPENDIX A . . . . . . . 141
APPENDIX B . . . . . . . 143
APPENDIX C . . . . . . . 147
APPENDIX D . . . . . . . 149
APPENDIX E . . . . . . . 153
LIST OF PUBLICATIONS . . . 161
