Dielectric resonator antenna handbook

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Searching... PSZ JB	30000010164650	TK7871.6 P47 2007	Open Access Book	Book	Searching... Unknown
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Enhance any display with these beautiful borders that feature full-color photographs of panoramic scenes. Eight 24" x 6" borders connect seamlessly for a total length of 16 feet. For use with Grades PreK#150;5.

Preface	p. ix
Acknowledgments	p. xi
Chapter 1 Introduction to Dielectric Resonator Antennas	p. 1
1.1 Brief History of Dielectric Resonator Antennas	p. 1
1.2 Major Characteristics	p. 3
1.3 Outline of the DRA Handbook	p. 4
References	p. 5
Chapter 2 Simple-Shaped Dielectric Resonator Antennas	p. 7
2.1 The Hemispherical DRA	p. 8
2.1.1 The TE[subscript 111], Mode	p. 9
2.1.2 The TM[subscript 101] Mode	p. 14
2.2 The Cylindrical DRA	p. 17
2.2.1 Resonant Frequency and Radiation Q-Factor of the Lower-Order Modes	p. 18
2.2.2 Design Procedure for the Cylindrical DRA	p. 25
2.3 The Rectangular DRA	p. 29
2.3.1 Resonant Frequency and Radiation Q-Factor	p. 31
2.3.2 Design Example	p. 42
References	p. 46
Chapter 3 Coupling to DRAs	p. 49
3.1 Coupling Coefficients	p. 49
3.2 Fields Within Rectangular and Cylindrical DRAs	p. 51
3.3 Aperture Coupling	p. 55
3.4 Probe Coupling	p. 67
3.5 Microstripline Coupling	p. 71
3.5.1 The Multisegment DRA	p. 73
3.6 Coplanar Coupling	p. 77
3.7 Dielectric Image Guide Coupling	p. 78
3.8 Survey of Analytical Methods	p. 79
3.8.1 Green's Function Analysis	p. 80
3.8.2 Frequency Domain Analysis	p. 80
3.8.3 Time Domain Analysis Techniques	p. 81
References	p. 82
Chapter 4 Survey of DRA Shapes	p. 89
4.1 DRAs Derived from Hemispherical Shapes	p. 89
4.2 DRAs Derived from Cylindrical Shapes	p. 90
4.2.1 Split-Cylinder DRA	p. 90
4.2.2 Cylindrical-Ring DRA	p. 91
4.2.3 Electric Monopole DRA	p. 97
4.2.4 Disk-Loaded Cylindrical DRA	p. 97
4.2.5 Sectored Cylindrical and Ring DRAs	p. 98
4.2.6 Elliptical DRA	p. 99
4.2.7 Conical DRAs	p. 100
4.3 DRAs Derived from Rectangular Shapes	p. 100
4.3.1 Notched Rectangular DRA	p. 101
4.3.2 Chamfered DRA	p. 101
4.3.3 Cross DRA	p. 102
4.3.4 Perforated DRA	p. 103
4.4 DRAs with Other Shapes	p. 107
4.4.1 Split-Triangular DRA	p. 107
4.4.2 Triangular DRA	p. 107
4.4.3 Tetrahedral DRA	p. 109
4.4.4 Stepped DRAs	p. 110
4.5 Hybrid DRAs	p. 111
4.5.1 Microstrip Ring - Cylindrical DRA	p. 111
4.5.2 DRA-Loaded Monopole	p. 112
4.5.3 Microstrip Patch - Cylindrical DRA	p. 112
4.5.4 Dielectric-Loaded Microstrip Suspended Patch	p. 113
References	p. 114
Chapter 5 Bandwidth Enhancement of DRAs	p. 119
5.1 Bandwidth Performance of Simple-Shaped DRAs	p. 119
5.2 Bandwidth Enhancement for Simple-Shaped DRAs	p. 123
5.2.1 Resonating Rectangular Slot Feed	p. 123
5.2.2 Ring-Aperture Feed	p. 123
5.2.3 U-Shaped-Aperture Feed	p. 123
5.2.4 Microstrip-Fed DRAs	p. 125
5.2.5 Dual-Mode Rectangular DRAs	p. 125
5.2.6 Cavity-Backed Disk	p. 125
5.2.7 Air Gaps	p. 127
5.2.8 Ring DRAs	p. 128
5.3 Multiple DRAs	p. 130
5.3.1 Stacked DRAs	p. 131
5.3.2 Coplanar DRAs	p. 132
5.3.3 Embedded DRAs	p. 134
5.4 Hybrid Antennas	p. 135
5.4.1 DRA-Loaded Microstrip Patch Antenna	p. 135
5.4.2 DRA-Loaded Monopole Antenna	p. 136
5.5 Modified DRAs	p. 138
5.5.1 Notched Rectangular DRA	p. 138
5.5.2 Inverted Stepped Pyramidal DRAs	p. 140
5.5.3 Conical DRAs	p. 141
5.5.4 Tetrahedral DRAs	p. 142
5.6 Summary	p. 143
References	p. 144
Chapter 6 Low-Profile and Compact DRAs	p. 149
6.1 Fundamental Limitations of Antennas	p. 149
6.2 DRAs with High Dielectric Constants	p. 155
6.3 Low-Profile Designs	p. 156
6.4 Compact Designs	p. 157
6.4.1 Electric Monopole DRA	p. 157
6.4.2 Edge-Grounded Rectangular DRA	p. 159
6.4.3 Top-Loaded Rectangular DRA	p. 161
6.4.4 Sectored Cylindrical DRA	p. 162
6.5 Finite Ground Plane Effects	p. 164
References	p. 167
Chapter 7 Circular- and Dual-Polarized DRAs	p. 171
7.1 Review of Polarization	p. 171
7.2 Dual-Point Feed	p. 174
7.3 Single-Point Feed	p. 178
7.3.1 Chamfered Rectangular DRA	p. 181
7.3.2 Rectangular DRA	p. 182
7.3.3 Cross DRA	p. 183
7.3.4 Cross-Slot Aperture	p. 185
7.3.5 Annular-Slot Apertures	p. 186
7.3.6 Parasitic-Slot Aperture	p. 187
7.3.7 Parasitic Strips	p. 188
7.3.8 Dielectric-Loaded Microstrip Patch	p. 189
7.4 Sequential Rotation	p. 190
7.5 Dual-Polarized DRAs	p. 192
References	p. 193
Chapter 8 Ferrite Resonator Antennas	p. 197
8.1 Review of the Permeability Tensor of Ferrites	p. 197
8.2 Frequency Agility	p. 198
8.3 Polarization Agility	p. 204
References	p. 207
Chapter 9 DRA Arrays	p. 209
9.1 Review of Array Theory	p. 209
9.2 Overview of Feed Network Design	p. 213
9.2.1 Series-and Parallel-Feed Networks	p. 213
9.2.2 Amplitude Excitation	p. 215
9.2.3 Phase Excitation	p. 216
9.3 Mutual Coupling	p. 217
9.4 Linear Arrays of DRAs	p. 219
9.4.1 Microstrip Parallel-Feed Network	p. 219
9.4.2 Microstrip Series-Feed Line	p. 220
9.4.3 Dielectric Image Guide Feed	p. 228
9.4.4 Microstrip Branchline Feed	p. 231
9.5 Planar Arrays	p. 233
9.5.1 Sequential Rotation Arrays	p. 233
9.5.2 Phased Array of MSDRAs	p. 234
9.5.3 Perforated DRA Array	p. 237
9.5.4 Reflectarray of DRAs	p. 240
9.6 Summary of DRA Arrays	p. 242
References	p. 242
Chapter 10 Practical Considerations	p. 247
10.1 Frequency Limitations	p. 247
10.2 Dielectric Material	p. 250
10.3 Fabrication	p. 250
10.3.1 DRA Element Fabrication	p. 250
10.3.2 Bonding	p. 251
10.3.3 Air Gaps	p. 251
10.3.4 DRA Array Fabrication	p. 254
10.4 DRA Pattern Measurements	p. 255
10.4.1 Basic Far-Field Pattern Measurement Setup	p. 256
10.4.2 AUT Roll Positioner and Backlobe Measurements	p. 258
10.4.3 Connectors and Cables	p. 260
10.5 Measuring Radiation Efficiency of DRAs	p. 266
References	p. 269
Bibliography	p. 271
List of Symbols	p. 301
About the Author	p. 303
Index	p. 305

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