Wideband Circularly Polarized Antenna With Stair-Shaped Dielectric Resonator and Open-Ended Slot Ground

被引：52
作者：
Lu, Liang [1 ,2 ]
Jiao, Yong-Chang [1 ,2 ]
Zhang, Huan [1 ,2 ]
Wang, Ruiqi [1 ,2 ]
Li, Tian [1 ,2 ]
机构：
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China
[2] Xidian Univ, Collaborat Innovat Ctr Informat Sensing & Underst, Xian 710071, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2016年 / 15卷
基金：
中国国家自然科学基金;
关键词：
Circularly polarized antenna; dielectric resonator (DR); wideband; DESIGN;
D O I：
10.1109/LAWP.2016.2532931
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel wideband circularly polarized (CP) antenna with a stair-shaped dielectric resonator and an open-ended slot ground is introduced. By adjusting parameter values of the hybrid structure, wideband CP characteristics can be realized. In order to improve the impedance matching and enhance the axialratio (AR) bandwidth, the open-ended slot is also inserted in the ground plane. The antenna is fully studied and manufactured. Measured results show that the proposed antenna has 10-dB return loss of 71.7% (3.844-8.146 GHz) and 3-dB AR bandwidths of 46.0% (4.15-6.63 GHz), respectively, and a peak gain of 3.9 dBic. In addition, more than 92% antenna radiation efficiency is obtained.
引用
收藏
页码：1755 / 1758
页数：4
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