Dual-Band Bandpass Filter With Controllable Bandwidths Using Two Coupling Paths

被引：56

作者：

Zhang, Xiu Yin ^{[1
]}

Chan, Chi Hou ^{[2
]}

Xue, Quan ^{[2
]}

Hu, Bin-Jie ^{[1
]}

机构：

[1] S China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Guangdong, Peoples R China

[2] City Univ Hong Kong, State Key Lab Millimeter Waves, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2010年 / 20卷 / 11期

关键词：

Bandpass filter (BPF); bandwidth control; coupling path; dual band;

D O I：

10.1109/LMWC.2010.2066553

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：

This letter presents the designs of dual-band bandpass filters using two coupling paths to control the bandwidth of each passband. One coupling path only delivers signals at the upper passband frequency whereas the other one couple signals at both passbands. Utilizing this method, the two bandwidths can be adjusted. The filters make use of stub-loaded resonators and it is convenient to tune the passband frequencies. Therefore, both the frequency and bandwidth of each passband can be easily controlled. For demonstration purpose, two example filters are implemented with different bandwidths. The experimental results are presented to verify the proposed method.

引用

页码：616 / 618

页数：3

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