Compact Dual-Band Bandpass Filters Using Open-/Short-Circuited Stub-Loaded λ/4 Resonators

被引：62
作者：
Zhang, Zhi-Chong [1 ]
Chu, Qing-Xin [1 ]
Chen, Fu-Chang [1 ]
机构：
[1] S China Univ Technol, Sch Elect & Informat Engn, Guangzhou, Guangdong, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2015年 / 25卷 / 10期
基金：
中国国家自然科学基金;
关键词：
BPF; dual-band; stub-loaded lambda/4 resonator; DESIGN;
D O I：
10.1109/LMWC.2015.2463216
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：
Two types of modified open-or short-circuited stub-loaded lambda/4 resonator and their applications to second-order dual-band bandpass filters are presented in this letter. Based on the resonance characteristics analysis, it is found that the first two resonant frequencies of the two resonators can be independently controlled. Furthermore, different frequency ratios can be achieved by loading different stubs. Finally, to illustrate the proposed idea, two second-order dual-band filters with controllable bandwidths are designed, fabricated and measured. The measured results are in good agreement with the full-wave simulation results.
引用
收藏
页码：657 / 659
页数：3
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