Compact Filtering Dielectric Resonator Antenna With Quasi-Isotropic Radiation Pattern

被引：0
|
作者：
Hu, Peng Fei [1 ,2 ]
Leung, Kwok Wa [1 ,2 ]
Pan, Yong Mei [3 ]
Zheng, Shao Yong [4 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, State Key Lab Terahertz & Millimeter Waves, Hong Kong, Peoples R China
[2] CityU Shenzhen Res Inst, Informat & Commun Technol Ctr, Shenzhen, Peoples R China
[3] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou, Peoples R China
[4] Sun Yat Sen Univ, Sch Elect & Informat Engn, Guangzhou, Peoples R China
来源：
PROCEEDINGS OF THE 2021 CROSS STRAIT RADIO SCIENCE AND WIRELESS TECHNOLOGY CONFERENCE (CSRSWTC) | 2021年
基金：
中国国家自然科学基金;
关键词：
Filtering antenna; Dielectric resonator antenna;
D O I：
10.1109/CSRSWTC52801.2021.9631610
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 compact filtering dielectric resonator antenna (DRA) is proposed in this paper. The hemisphere dielectric resonator (DR) is fed by a microstrip line with two stubs. Due to the different loading effects of the two feeding stubs, the DR TE111 mode is excited with two adjacent resonances, showing a bandwidth of 6.8%. Two controllable radiation nulls are generated at the lower and upper edges of the passband, bring about high frequency selectivity. Also, the DR operating at TE111 mode is equivalent to a magnetic dipole, while a small ground plane used in the DRA radiates like an electric dipole. The combination of the two orthogonal dipoles leads to a quasiisotropic radiation pattern. This antenna has a small size (ka = 0.88) and bandpass filtering function.
引用
收藏
页码：325 / 327
页数：3
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