Dual-band bandpass filter with source-load coupling

被引：7
|
作者：
Gao, S. [1 ]
Xiao, Z. -Y. [1 ]
Chen, W. -F. [1 ]
机构：
[1] Shanghai Univ, Sch Commun & Informat Engn, Shanghai 200072, Peoples R China
来源：
ELECTRONICS LETTERS | 2009年 / 45卷 / 17期
关键词：
STEPPED-IMPEDANCE RESONATORS;
D O I：
10.1049/el.2009.1656
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 is presented for wireless LAN applications. Using two centrally-loaded stepped-impedance resonators, the second passband frequency can be conveniently tuned. Two transmission zeros are generated between the two passbands because of source-loading coupling topology. Simulated results show that two central frequencies are located at desired 2.4 and 5.7 GHz with 3 dB fractional bandwidths of 18.8 and 7.1%, respectively. Comparison of measured and simulated results shows good agreement.
引用
收藏
页码：894 / U52
页数：2
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