Dielectric Resonator Antennas.

• Author: Mukherjee, Biswajeet.
• TeilnehmendeR: Chauhan, Monika.
• Place / Publishing House: Norwood : : Artech House,, 2021.; ©2021.
• Year of Publication: 2021
• Edition: 1st ed.
• Language: English
• Physical Description: 1 online resource (215 pages)

Table of Contents

Dielectric Resonator Antennas -- Contents -- Acknowledgments -- 1 Introduction to Dielectric Resonator Antennas -- 1.1 Genesis of Dielectric Materials as Radiators -- 1.2 RDRAs and Their Modes -- 1.3 CDRA and Its Modes -- 1.4 HDRA and Its Modes -- 1.5 Equilateral Triangular DRA and Its Modes -- 1.6 Conclusion -- References -- 2 DRA Bandwidth Enhancement Techniques -- 2.1 Various Feeding Methods -- 2.1.1 Coaxial Probe Feed -- 2.1.2 Microstrip Feeding -- 2.1.3 Aperture or Slot Feeding -- 2.2 Bandwidth Enhanced by Stacking of Various Permittivity Layers -- 2.3 Metallic Loading -- 2.4 Compact and Low-Profile Geometry -- 2.5 Fractal- and Reform-Shaped Geometry -- 2.6 Conclusion -- References -- 3 DRA CP Techniques -- 3.1 Circular Polarization by the Single-Feed Technique -- 3.2 CP by Multiple-Feeding Techniques -- 3.3 CP by Geometry Modification Techniques -- 3.4 CP by the Array Configuration Technique -- 3.5 CP by Switchable Feeding Techniques -- 3.6 Conclusion -- References -- 4 DRA Gain-Enhancement Techniques -- 4.1 Gain Enhancement by Loading a Metamaterial or Frequency-Selective Surface on a DRA -- 4.2 Gain Enhanced by Metal Integration of the DRA -- 4.3 Gain Enhanced by Higher-Order Modes -- 4.4 Enhancing Gain with a Dielectric Resonator Array System -- 4.5 Enhancing Gain by Stacking Various Materials -- 4.6 Conclusion -- References -- 5 Multiple-Input and Multiple-Output DRAs and Diversity Applications -- 5.1 MIMO Antenna Characteristics and Attributes -- 5.1.1 Reflection Coefficient (R) -- 5.1.2 Transmission Coefficient (t) -- 5.1.3 Envelope Correlation Coefficient -- 5.1.4 Channel Capacity Loss -- 5.1.5 Mean Effective Gain -- 5.1.6 Total Active-Reflection Coefficient -- 5.2 Single-DRA Element with Dual- or Multiple-Feeding Techniques for MIMO Applications -- 5.3 Dual-DRA Elements with Dual- or Multiple-Feeding Techniques for MIMO Applications.

5.4 Multiple DRA Elements with Multiple Feeds for MIMO Applications -- 5.5 Conclusion -- References -- 6 Fabrication, Experimental Setup, Measurement, and Practical Considerations -- 6.1 Dielectric Material and Its Selection -- 6.2 Limitations in Practical DRA Considerations -- 6.3 Fabrication Methods and Machines -- 6.4 Various Measurements of the DRA -- 6.4.1 Measurement of the S-Parameter -- 6.4.2 Far-Field Measurement Setup -- 6.4.3 Gain and Antenna Radiation Efficiency Measurements -- 6.4.4 CP Measurements -- 6.5 Conclusion -- References -- About the Authors -- Index.