Differentially fed, dual-band filtering antenna with H-shaped slot

被引：9

作者：

Li, Yapeng ^{[1
]}

Zhao, Zhipeng ^{[1
]}

Tang, Zhaoyang ^{[1
]}

Yin, Yingzeng ^{[1
]}

机构：

[1] Xidian Univ, Natl Key Lab Antenna & Microwave Technol, Xian 710071, Shaanxi, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2020年 / 62卷 / 01期

关键词：

differentially fed; dual-band antenna; filtering antenna; H-shaped slot; PATCH ANTENNA; SELECTIVITY; RADIATION;

D O I：

10.1002/mop.32034

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 differentially fed, dual-band microstrip patch antenna with filtering response is proposed in this letter. By etching an H-shaped slot at a rectangle radiating patch, two resonant modes of the patch antenna, as well as an additional radiation null between the two operation bands are generated. Besides, two symmetric open-stub coupling feedlines (OSCFs) are introduced to differentially excite the antenna, which offer two extra radiation nulls outside the two bands. Thus, a dual-band bandpass filtering response for the proposed antenna is obtained. Measurement results of the prototype show good agreement with the simulated ones. Stable radiation patterns with low cross-polarization levels of better than 28 dB are observed. Besides, a deep roll-off of better than 22 dBi for the realized gain is also obtained.

引用

页码：448 / 452

页数：5