Miniaturized Dual-Band Bandpass Filter with Multiple Transmission Zeros

被引：2

作者：

Wei, X. -B. ^{[1
,2
]}

Yue, G. -T. ^{[1
]}

Shi, Y. ^{[2
]}

Wang, P. ^{[1
]}

Liao, J. -X. ^{[1
]}

Xu, Z. -Q. ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Res Inst Elect Sci & Technol, Chengdu 611731, Peoples R China

[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 611731, Peoples R China

来源：

ELECTROMAGNETICS | 2013年 / 33卷 / 08期

基金：

中国国家自然科学基金;

关键词：

dual-band bandpass filter; transmission zeros; stepped-impedance resonator; mixed coupling; STEPPED IMPEDANCE RESONATORS; DESIGN; SELECTIVITY;

D O I：

10.1080/02726343.2013.835676

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 miniaturized dual-band bandpass filter with high frequency selectivity using stepped-impedance hairpin resonators is presented. The proposed filter consists of two sets of short-circuit centered stepped-impedance hairpin resonators, one of which is embedded in the other one to obtain two passbands. Multiple transmission zeros are employed via introducing mixed electric/magnetic coupling and source-load coupling simultaneously for high frequency selectivity. A 2.4-/5.2-GHz dual-band bandpass filter is designed and fabricated to demonstrate the proposed method. The measurement results show six finite transmission zeros in the stopband, located at 2.04, 3.67, 4.58, 5.89, 10.63, and 15.73 GHz, respectively. And the circuit only occupies 6.70 x 10.25 mm(2).

引用

页码：591 / 597

页数：7

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