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

页码：894 / U52

页数：2

共 7 条

[1] Dual-Wideband Bandpass Filter Using Short-Circuited Stepped-Impedance Resonators
Chin, Kuo-Sheng
Yeh, Jun-Hong
[J]. IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2009, 19 (03) : 155 - 157
[2] A compact dual-band bandpass filter using meandering stepped impedance resonators
Chu, Qing-Xin
Chen, Fu-Chang
[J]. IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2008, 18 (05) : 320 - 322
[3] Dual-Band Bandpass Filter With Improved Performance in Extended Upper Rejection Band
Kuo, Jen-Tsai
Lin, Huei-Ping
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2009, 57 (04) : 824 - 829
[4] Compact dual-band bandpass filter using trisection hairpin resonator for GPS and WLAN applications
Liu, H. -W.
Lv, Y. -F.
Zheng, W.
[J]. ELECTRONICS LETTERS, 2009, 45 (07) : 360 - 361
[5] Geometrical structures and fundamental characteristics of microwave stepped-impedance resonators
Sagawa, M
Makimoto, M
Yamashita, S
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1997, 45 (07) : 1078 - 1085
[6] Miniature dual-band filter using quarter wavelength stepped impedance resonators
Singh, Pramod K.
Basu, Sarbani
Wang, Yeong-Her
[J]. IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2008, 18 (02) : 88 - 90
[7] Novel centrally loaded resonators and their applications to bandpass filters
Zhang, Xiu Yin
Xue, Quan
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2008, 56 (04) : 913 - 921

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