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MICROWAVE RECTIFYING CIRCUITS AND ANTENNAS
FOR RADIO FREQUENCY IDENTIFICATION AND WIRELESS POWER
TRANSMISSION APPLICATIONS
A Dissertation by
BERND HERBERT STRASSNER II
Texas A&M University
TABLE OF CONTENTS vii
LIST OF FIGURES x
CHAPTER
I. INTRODUCTION 1
Q. CIRCULAR POLARIZED RECTIFYING ANTENNA 7
A. Rectenna Operation Theory 7
B. Simulated and Measured Data for Rectenna Components 19
1) Coplanar Stripline (CPS) Characteristic Impedance 20
2) Circular Polarized (CP) Dual Rhombic Loop Antenna (DRLA) 21
3) Coplanar Stripline Band-Reject Filter (CPS BRF) 23
4) Microstrip to Coplanar Stripline (CPS) Baluns 26
5) Antenna + CPS BRF + Balun Linear Polarized (LP) Measured Results 28
6) DC-Pass Filter 37
7) Diode Efficiency Direct-Measurement 38
8) Rectenna Axial Ratio and Efficiency Measurement 39
01. CIRCULARLY POLARIZED RECTIFYING ANTENNA ARRAY 43
A. Array Operation Theory 43
B. Array Measurements 51
C. Conclusions 57
IV. RADIO FREQUENCY IDENTIFICATION FOR DRILL PIPE 58
A. Operational Theory and Component Design 58
1). Tag System Components 59
2). Tag/Reader Link 62
3) Data Rate 63
B. Digital Subsection 65
1) Digital Components 65
2) Microcontroller Programming 67
3) Hardware Implementation 70
4) Digital ID Code 71
C. Measured Data for RF Subsection 73
1) Circular Patch Antenna 73
2) PIN Diode Modulation Circuit Performance 77
3) Tag Free-Space Performance 78
D. Conclusions 82
V. MICROSTRIP DIPLEXERS 83
A. What is a Diplexer? 83
B. Two Channel / Two Frequency Band stop Diplexer 84
C. Two Channel / Four Frequency Parallel-Coupled Band Pass Diplexer.. 86
D. Two Channel / Four Frequency Cymbal Band Pass/LPF Diplexer 88
E. Two Channel / Four Frequency Periodic Structure Diplexers 91
VI. CONCLUSIONS 102
REFERENCES 103
APPENDIX 1 108
APPENDIX 0 115
APPENDIX in 122
APPENDIX IV 133
APPENDIX V 135
APPENDDCV1 137
APPENDIX VH 142
REFERENCES 147 |
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发表于 2009-11-9 13:29:45
