MINIATURIZED DUAL-BAND BANDPASS FILTER USING SHORT STUB-LOADED DUAL-MODE RESONATORS

被引：24
|
作者：
Xu, K. -D. [1 ]
Zhang, Y. -H. [1 ]
Zhuge, C. -L. [1 ]
Fan, Y. [1 ]
机构：
[1] Univ Elect Sci & Technol China, EHF Key Lab Fundamental Sci, Chengdu 611731, Peoples R China
来源：
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2011年 / 25卷 / 16期
关键词：
STEPPED-IMPEDANCE RESONATORS; COMPACT; DESIGN; WLANS; LINES;
D O I：
10.1163/156939311798147060
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 novel miniaturized dual-band bandpass filter using two sets of short stub-loaded dual-mode resonators (SSLDMRs) is presented in this paper. It has been implemented with two parallel transmission paths for two specific passbands, which is convenient to design single-band independently. Each of them using the proposed SSLDMR results in respective passband. Meanwhile, it is easy to control the bandwidth of each passband by changing even-mode resonant frequency of the corresponding SSLDMR. Moreover, one set of SSLDMRs is embedded inside of the other one for the size compactness, which can further miniaturize the dimensions of the overall structure. To improve the selectivity and achieve a high out-of-band rejection, the source-load coupling is utilized to create four transmission zeros on either side of both passbands. The simulated and measured results are presented and show good agreement.
引用
收藏
页码：2264 / 2273
页数：10
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