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Bandwidth Enhancement Technique of a Dual-Band Circularly Polarized Dielectric Resonator Antenna

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Title Bandwidth Enhancement Technique of a Dual-Band Circularly Polarized Dielectric Resonator Antenna
 
Creator Gotra, Shailza
Pandey, V S
Singh, Brahmjit
 
Subject Bandwidth enhancement
Circularly polarized
Dielectric resonator
Dual-band response
 
Description 229-232
This paper presents the rectangular aperture coupled dielectric resonator antenna with dual-band circularly polarized response. The antenna geometry have stair case shaped rectangular dielectric resonator in the form of main radiating element. The specific geometry provides increment of aspect ratio of the dielectric resonator. This allows merging of various resonant frequencies having higher order modes that result in the bandwidth enhancement. This antenna provides 18.63% and 7.68% of -10 dB S11-parameter bandwidth response in operating passbands, respectively. The specific geometry and the introduction of circular slots in ground plane results in the orthogonal modes excitation at the nearby resonant frequencies. Due to this, the circular polarization response at 7.76 and 8.33 GHz frequencies is achieved. The peak gain of 5.8 and
4.6 dBic is obtained in the respective lower and upper operating passbands. Through parametric analysis, tuning of antenna responseis also achieved. The proposed antenna with the optimized parameters may have potential applications in the microwave C- and X-band setups.
 
Date 2021-03-16T06:50:44Z
2021-03-16T06:50:44Z
2021-03
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/56508
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJPAP Vol.59(03) [March 2021]