Design of Rectangular Dielectric Resonator Antenna by Utilizing Dielectrics having Low Loss and Small Loss for Bandwidth Enhancement

2021 ◽  
Author(s):  
Shukdev Pandey ◽  
Devendra Kumar ◽  
Om Parkash
Keyword(s):  
Dielectric Resonator ◽  
Dielectric Resonator Antenna ◽  
Low Loss ◽  
Bandwidth Enhancement ◽  
Small Loss ◽  
Rectangular Dielectric Resonator Antenna

scholarly journals Bandwidth Enhancement of Tri-band Rectangular Dielectric Resonator Antenna using Novel Offset Feed for WLAN/WIMAX Applications

2020 ◽  
Vol 9 (5) ◽  
pp. 2305-2308
Keyword(s):  
Dielectric Resonator ◽  
Microstrip Line ◽  
Return Loss ◽  
Radiation Efficiency ◽  
Antenna Design ◽  
Design Parameters ◽  
Dielectric Resonator Antenna ◽  
Bandwidth Enhancement ◽  
Frequency Bands ◽  
Rectangular Dielectric Resonator Antenna

In this article, a novel offset microstrip line feed Rectangular Dielectric Resonator Antenna is used for bandwidth enhancement. The parameters such as Bandwidth, Return Loss and Radiation efficiency are improved in the proposed antenna. A comparison is also shown for the proposed feed structure with and without conformal strips. The improvement in the bandwidth is observed from 25% to 65% by optimizing the antenna design parameters. It works in three frequency bands, that is, 2.03-3.69 GHz, 3.86-7.26 GHz, and 7.32-9.26 GHz. The proposed antenna is appropriate for WIMAX/WLAN applications.

Axial ratio bandwidth enhancement of a circularly polarized rectangular dielectric resonator antenna

2018 ◽  
Vol 10 (8) ◽  
pp. 984-990 ◽  
Author(s):  
Gaurav Varshney ◽  
V. S. Pandey ◽  
R. S. Yaduvanshi
Keyword(s):  
Dielectric Resonator ◽  
Axial Ratio ◽  
New Technique ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Bandwidth Enhancement ◽  
Circularly Polarized ◽  
Conductive Coating ◽  
A New Technique ◽  
Rectangular Dielectric Resonator Antenna

AbstractThis paper presents a new technique for the enhancement of axial ratio (AR) bandwidth of a circularly polarized dielectric resonator antenna with a single feeding. To enhance the AR bandwidth, adjacent 3-dB AR passbands are merged by inserting the notches and conductive coating in the dielectric resonator. The dimensions of the notches and conductive coating are selected in such manner that impedance bandwidth remains approximately unchanged. The antenna provides the measured AR and impedance bandwidths of 55.22% and 66.45%, respectively.

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