scholarly journals SIZE REDUCTION AND BANDWIDTH ENHANCEMENT OF A UWB HYBRID DIELECTRIC RESONATOR ANTENNA FOR SHORT-RANGE WIRELESS COMMUNICATIONS

2010 ◽  
Vol 19 ◽  
pp. 19-30 ◽  
Author(s):  
Osama Mohamed Haraz Ahmed ◽  
Abdel Razik Sebak ◽  
Tayeb Ahmed Denidni
Keyword(s):  
Wireless Communications ◽  
Dielectric Resonator ◽  
Short Range ◽  
Size Reduction ◽  
Dielectric Resonator Antenna ◽  
Bandwidth Enhancement

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.

scholarly journals Study and analysis of single notched rectangular dielectric resonator antenna for cognitive radio applications

2017 ◽  
Vol 7 (1.1) ◽  
pp. 530
Author(s):  
S Nagendram ◽  
B T P Madhav ◽  
K Sony ◽  
P Janaki ◽  
P Lakshmi Prasanna ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Dielectric Resonator ◽  
Ring Resonator ◽  
Split Ring Resonator ◽  
Ultra Wideband ◽  
Dielectric Resonator Antenna ◽  
Bandwidth Enhancement ◽  
Efficient Integration ◽  
Radar Applications ◽  
Radio Systems

 In this article a single notched ultra-wideband antenna which is integrated with dielectric ring resonator is proposed for cognitive radio applications. The proposed antenna consists of elliptical base and a split ring resonator on either side of the feedline for bandwidth enhancement. The rectangular dielectric resonator which is proposed is a rectangular dielectric resonator which give good isolation between the two ports. The proposed antenna has single rejection at 5.7GHz-8.4GHz at ultrawideband region. The proposed antenna has a peak gain of 6dB and average gain of 3. 1dB.Commercially equipped tool ANSYS EM 17 is used to characterise the proposed antenna. The proposed antenna provides good isolation between the two antenna ports confirming efficient integration. The antenna is best suitable for candidate of radar applications, medical imaging and cognitive radio systems.

A compact multiband dielectric resonator antenna for wireless communications

2020 ◽  
Vol 62 (9) ◽  
pp. 2945-2952
Author(s):  
Qianqian Guo ◽  
Jingwei Zhang ◽  
Jiajia Zhu ◽  
Dandan Yan
Keyword(s):  
Wireless Communications ◽  
Dielectric Resonator ◽  
Dielectric Resonator Antenna
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