A Compact Filtering Antenna With Flat Gain Response Within the Passband

被引：129

作者：

Chen, Xinwei ^{[1
]}

Zhao, Fengxian ^{[1
]}

Yan, Liyun ^{[1
]}

Zhang, Wenmei ^{[1
]}

机构：

[1] Shanxi Univ, Coll Phys & Elect, Taiyuan 030006, Shanxi, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷

基金：

美国国家科学基金会;

关键词：

Cross polarization; defected ground structure (DGS); fan-shaped patch antenna; filtering antenna; flat gain; MICROSTRIP ANTENNA;

D O I：

10.1109/LAWP.2013.2271972

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 antenna is designed for the modern wireless communication systems in this letter. First, a two-pole Butterworth bandpass filter is designed. Then, by substituting the second port and resonator with fan-shaped patch antenna (traditional antenna) with defected ground structure (DGS), a filtering antenna is formed. Compared to the traditional antenna, the filtering antenna obtains the flatter gain response within the passband, good selectivity at the passband edge, and the wider bandwidth. Measured results show that the filtering antenna can operate at 2.4 GHz and has a 460-MHz band-width and a 2.3-dBi peak gain within the passband. Moreover, a radiation zero occurs at 3 GHz.

引用

页码：857 / 860

页数：4

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