Compact and High Selectivity Tri-Band Bandpass Filter Using Multipath-Embedded Resonators

被引：3
|
作者：
Yang, Shuai [1 ]
Wu, Bian [1 ]
Zhu, Cheng [1 ]
Wang, Yi [1 ]
Liang, Chang-Hong [1 ]
机构：
[1] Xidian Univ, Natl Lab Sci & Technol Antennas & Microwaves, Xian 710071, Shaanxi, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2014年 / 50卷
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
D O I：
10.2528/PIERL14102108
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：
In this paper, a novel compact tri-band bandpass filter (BPF) with compact circuit size and high passband selectivity has been presented and implemented using multipath-embedded resonator (MER). This filter includes two multipath-embedded stepped impedance resonators (SIRs), connected with stub-coupling at the symmetric plane. By tuning admittance ratio and length ratio of the multipath-embedded resonator, it can be designed at 1.84, 2.45, 3.05 GHz. Through internal edge-coupling and extemal zero-degree feed lines, a tri-band BPF can be achieved with compact circuit size, high passband selectivity and low insertion loss. The measured results validate the full-wave EM simulated results with good agreement.
引用
收藏
页码：35 / 40
页数：6
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