A Filtering Hemispherical Dielectric Resonator Antenna

被引：0
|
作者：
Liu, Xiyao [1 ,2 ,3 ]
Leung, Kwok Wa [1 ,2 ,3 ]
Yang, Nan [4 ]
机构：
[1] City Univ Hong Kong, State Key Lab Terahertz & Millimeter Waves, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China
[3] CityU Shenzhen Res Inst, Shenzhen Key Lab Millimeter Wave & Wideband Wirel, Shenzhen, Peoples R China
[4] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510006, Peoples R China
来源：
2021 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP) | 2021年
基金：
中国国家自然科学基金;
关键词：
DRA; filtering antenna; hemisphere; slots; defected ground structures; mode-cancelling;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A filtering hemisphere dielectric resonator (DR) antenna (DRA) is presented. It consists of a conventional hemisphere DR, a ladder-like feeding line, and three slots etched in the ground. In this antenna, three modes, which are the fundamental TE111 DR mode and two slot modes are excited simultaneously. By making use of the mode-cancelling effect, two independently tunable radiation nulls are obtained beside the passband, producing filtering responses. Simulated results show that our antenna has a -10-dB impedance bandwidth of 17.4%, a gain of similar to 5.7 dBi, and a suppression level of 19 dB.
引用
收藏
页数：2
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