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Cylindrical Dielectric Resonator Antennas Unabridged edition [Kõva köide]

  • Formaat: Hardback, 290 pages, kõrgus x laius: 228x152 mm
  • Ilmumisaeg: 30-Nov-2021
  • Kirjastus: Artech House Publishers
  • ISBN-10: 1630818704
  • ISBN-13: 9781630818708
Teised raamatud teemal:
Cylindrical Dielectric Resonator Antennas Unabridged editionSuurem pilt
  • Formaat: Hardback, 290 pages, kõrgus x laius: 228x152 mm
  • Ilmumisaeg: 30-Nov-2021
  • Kirjastus: Artech House Publishers
  • ISBN-10: 1630818704
  • ISBN-13: 9781630818708
Teised raamatud teemal:
Püsilink: https://www.kriso.ee/db/9781630818708.html
Märksõnad:
This book explains dielectric resonator antennas and their applications in different industrial, commercial, and research sectors. It describes the different modes and resonant frequency calculation of various dielectric resonator antenna configurations; dielectric resonator antenna bandwidth enhancement techniques, circular polarization techniques, and gain-enhancement techniques; multiple-input and multiple-output dielectric resonator antenna characteristics and new techniques for improving isolation and pattern diversity; and fabrication, experimental setup, measurement, and practical considerations. Annotation ©2022 Ringgold, Inc., Portland, OR (protoview.com)
Acknowledgments ix
1 Introduction to Dielectric Resonator Antennas
1(20)
1.1 Genesis of Dielectric Materials as Radiators
1(3)
1.2 RDRAs and Their Modes
4(3)
1.3 CDRA and Its Modes
7(2)
1.4 HDRA and Its Modes
9(5)
1.5 Equilateral Triangular DRA and Its Modes
14(4)
1.6 Conclusion
18(3)
References
18(3)
2 DRA Bandwidth Enhancement Techniques
21(52)
2.1 Various Feeding Methods
21(22)
2.1.1 Coaxial Probe Feed
22(11)
2.1.2 Microstrip Feeding
33(4)
2.1.3 Aperture or Slot Feeding
37(6)
2.2 Bandwidth Enhanced by Stacking of Various Permittivity Layers
43(5)
2.3 Metallic Loading
48(5)
2.4 Compact and Low-Profile Geometry
53(5)
2.5 Fractal - and Reform-Shaped Geometry
58(6)
2.6 Conclusion
64(9)
References
65(8)
3 DRA CP Techniques
73(44)
3.1 Circular Polarization by the Single-Feed Technique
76(9)
3.2 CP by Multiple-Feeding Techniques
85(5)
3.3 CP by Geometry Modification Techniques
90(8)
3.4 CP by the Array Configuration Technique
98(7)
3.5 CP by Switchable Feeding Techniques
105(5)
3.6 Conclusion
110(7)
References
110(7)
4 DRA Gain-Enhancement Techniques
117(40)
4.1 Gain Enhancement by Loading a Metamaterial or Frequency-Selective Surface on a DRA
119(6)
4.2 Gain Enhanced by Metal Integration of the DRA
125(8)
4.3 Gain Enhanced by Higher-Order Modes
133(6)
4.4 Enhancing Gain with a Dielectric Resonator Array System
139(8)
4.5 Enhancing Gain by Stacking Various Materials
147(5)
4.6 Conclusion
152(5)
References
152(5)
5 Multiple-Input and Multiple-Output DRAs and Diversity Applications
157(18)
5.1 MIMO Antenna Characteristics and Attributes
158(3)
5.1.1 Reflection Coefficient (R)
158(1)
5.1.2 Transmission Coefficient (t)
159(1)
5.1.3 Envelope Correlation Coefficient
159(1)
5.1.4 Channel Capacity Loss
160(1)
5.1.5 Mean Effective Gain
160(1)
5.1.6 Total Active-Reflection Coefficient
161(1)
5.2 Single-DRA Element with Dual - or Multiple-Feeding Techniques for MIMO Applications
161(4)
5.3 Dual-DRA Elements with Dual - or Multiple-Feeding Techniques for MIMO Applications
165(4)
5.4 Multiple DRA Elements with Multiple Feeds for MIMO Applications
169(3)
5.5 Conclusion
172(3)
References
172(3)
6 Fabrication, Experimental Setup, Measurement, and Practical Considerations
175(20)
6.1 Dielectric Material and Its Selection
175(4)
6.2 Limitations in Practical DRA Considerations
179(1)
6.3 Fabrication Methods and Machines
180(5)
6.4 Various Measurements of the DRA
185(6)
6.4.1 Measurement of the S-Parameter
187(1)
6.4.2 Far-Field Measurement Setup
188(1)
6.4.3 Gain and Antenna Radiation Efficiency Measurements
189(1)
6.4.4 CP Measurements
190(1)
6.5 Conclusion
191(4)
References
191(4)
About the Authors 195(2)
Index 197