A Novel Tri-Band Patch Antenna With Broadside Radiation and Its Application to Filtering Antenna

被引：61
作者：
Qian, Jian-Feng [1 ]
Chen, Fu-Chang [1 ]
Chu, Qing-Xin [1 ]
机构：
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Guangdong, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2018年 / 66卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Broadside radiation; filtering antenna; patch antenna; tri-band antenna; DUAL-BAND; MICROSTRIP ANTENNAS; ARRAY;
D O I：
10.1109/TAP.2018.2853160
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 tri-band patch antenna utilizing the TM10 mode together with modified TM20 and TM30 modes of a single patch is proposed in this communication. Through asymmetrically loading a stub on one radiating edge of the patch and cutting a rectangular slot offset from the other one, the current distributions of the TM20 and TM30 modes are perturbed, resulting in broadside radiation for all the first three modes of a single patch. Each operational frequency can be effectively controlled through varying the dimensions of the patch, slot, and loading stub. Good impedance matching is achieved simultaneously in three operational bands through aperture coupling. A prototype is designed, fabricated, and measured for validation. Based on this tri-band antenna, a new tri-band filtering antenna is further developed. showing good selectivity and broadside radiation characteristic.
引用
收藏
页码：5580 / 5585
页数：6
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