Metamaterial inspired square gap defected ground structured wideband dielectric resonator antenna for microwave applications

被引：6
|
作者：
Raghavendra, Ch [1 ]
Ammal, M. Neelaveni [1 ]
Madhav, B. T. P. [2 ]
机构：
[1] SRM Inst Sci & Technol, Dept Elect & Commun Engn, Kattankulathur 603203, Tamilnadu, India
[2] Koneru Lakshmaiah Educ Fdn, Antennas & Liquid Crystals Res Ctr, Dept Elect & Commun Engn, Vijayawada 522501, Andhra Pradesh, India
来源：
HELIYON | 2023年 / 9卷 / 02期
关键词：
Defected ground (DGS); Metamaterial; Monopole antenna; Wideband characteristics; PRINTED MONOPOLE ANTENNA;
D O I：
10.1016/j.heliyon.2023.e13564
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A metamaterial inspired dielectric resonator antenna (DRA) with square gap defected ground structure is proposed in the present work. Antenna has wideband characteristics with coverage of several commercial communication applications of Wi-Fi, WLAN, and satellite communications from 3.5 to 11.6 GHz. The metamaterial behavior of the proposed structure providing good impedance characteristics with peak realized gain of 7.7 dB and peak efficiency of 87% with dual band circular polarization from 4.2 to 6 GHz and 9.2-11.4 GHz respectively. The prototyped antenna model 1 without DRA providing good matching characteristics results and producing huge bandwidth of 8.1 GHz and the impedance bandwidth of 108%. DRA loaded antenna providing dual band circular polarization with axial ratio bandwidths of 36% and 28% respec-tively for wide range in the microwave communication applications.
引用
收藏
页数：15
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