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Dielectric Resonator Antenna Handbook.
Today, more and more antenna engineers are viewing the dielectric resonator antenna (DRA) as a preferable alternative to conventional low-gain designs because of several attractive features, including high radiation, light weight, small size and low profile. This practical resource presents complete...
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Norwood :
Artech House,
2007.
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| Colección: | Artech House antennas and propagation library.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Dielectric Resonator Antenna Handbook; Contents v; Preface ix; Acknowledgments xi; Chapter 1 Introduction to Dielectric Resonator Antennas 1; 1.1 BRIEF HISTORY OF DIELECTRIC RESONATOR ANTENNAS 1; 1.2 MAJOR CHARACTERISTICS 3; 1.3. OUTLINE OF THE DRA HANDBOOK 4; References 5; Chapter 2 Simple-Shaped Dielectric Resonator Antennas 7; 2.1 THE HEMISPHERICAL DRA 8; 2.2 THE CYLINDRICAL DRA 17; 2.3 THE RECTANGULAR DRA 29; References 46; Appendix 48; Chapter 3 Coupling to DRAs 49; 3.1 COUPLING COEFFICIENTS 49; 3.2 FIELDS WITHIN RECTANGULAR AND CYLINDRICAL DRAS 51; 3.3 APERTURE COUPLING 55.
- 3.4 PROBE COUPLING 673.5 MICROSTRIP LINE COUPLING 71; 3.6 COPLANAR COUPLING 77; 3.7 DIELECTRIC IMAGE GUIDE COUPLING 78; 3.8 SURVEY OF ANALYTICAL METHODS 79; References 82; Chapter 4 Survey of DRA Shapes 89; 4.1 DRAS DERIVED FROM HEMISPHERICAL SHAPES 89; 4.2 DRAS DERIVED FROM CYLINDRICAL SHAPES 90; 4.3 DRAS DERIVED FROM RECTANGULAR SHAPES 100; 4.4 DRAS WITH OTHER SHAPES 107; 4.5 HYBRID DRAS 111; References 114; Chapter 5 Bandwidth Enhancement of DRAs 119; 5.1. BANDWIDTH PERFORMANCE OF SIMPLE-SHAPED DRAS 119; 5.2 BANDWIDTH ENHANCEMENT FOR SIMPLE-SHAPED DRAs 123; 5.3 MULTIPLE DRAS 130.
- 5.4 HYBRID ANTENNAS 1355.5 MODIFIED DRAS 138; 5.6. SUMMARY 143; References 144; Chapter 6 Low-Profile and Compact DRAs 149; 6.1 FUNDAMENTAL LIMITATIONS OF ANTENNAS 149; 6.2 DRAS WITH HIGH DIELECTRIC CONSTANTS 155; 6.3 LOW-PROFILE DESIGNS 156; 6.4 COMPACT DESIGNS 157; 6.5 FINITE GROUND PLANE EFFECTS 164; References 167; Chapter 7 Circular-Polarized and Dual-Polarized DRAs 171; 7.1 REVIEW OF POLARIZATION 171; 7.2 DUAL-POINT FEED 174; 7.3 SINGLE-POINT FEED 179; 7.4 SEQUENTIAL ROTATION 191; 7.5 DUAL-POLARIZED DRAS 193; References 194; Chapter 8 Ferrite Resonator Antennas 197.
- 8.1 REVIEW OF THE PERMEABILITY TENSOR OF FERRITES 1978.2 FREQUENCY AGILITY 198; 8.3 POLARIZATION AGILITY 204; References 207; Chapter 9 DRA Arrays 209; 9.1 REVIEW OF ARRAY THEORY 209; 9.2 OVERVIEW OF FEED NETWORK DESIGN 213; 9.3 MUTUAL COUPLING 217; 9.4. LINEAR ARRAYS OF DRAS 219; 9.6 SUMMARY OF DRA ARRAYS 242; References 242; Chapter 10 Practical Considerations 247; 10.1 FREQUENCY LIMITATIONS 247; 10.2 DIELECTRIC MATERIAL 250; 10.3 FABRICATION 250; 10.4 DRA PATTERN MEASUREMENTS 255; 10.5 Measuring Radiation Efficiency of DRAs 266; References 269; Bibliography 271; List of Symbols 301.