Compact dual-band bandpass filter with improved stopband characteristics

被引：13

作者：

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

Shi, Y. ^{[2
]}

Wang, P. ^{[1
]}

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

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

Yang, B. C. ^{[2
]}

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：

ELECTRONICS LETTERS | 2012年 / 48卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Resonators - Microstrip devices - Bandwidth;

D O I：

10.1049/el.2012.1107

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 dual-band bandpass filter with an improved stopband using short-circuit centred stepped impedance resonators (SCSIRs) is presented. The proposed filter consists of two SCSIRs, one of which is embedded in the other one to obtain two passbands. Multiple transmission zeros can be generated by the proposed SCSIR for high passband selectivity and upper wide stopband bandwidth. The centre frequencies and bandwidths of the two passbands can be controlled by adjusting the geometric dimensions of the SCSIRs, respectively. A 2.4/5.2 GHz dual-band experimental BPF has been designed and fabricated to demonstrate the proposed method.

引用

页码：704 / 705

页数：2

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