Compact Dual-Mode Bandpass Filters Based on Half-Mode Substrate-Integrated Waveguide Cavities

被引：48
|
作者：
Zhu, Fang [1 ]
Luo, Guo Qing [1 ]
Liao, Zhen [1 ,2 ]
Dai, Xi Wang [1 ]
Wu, Ke [3 ]
机构：
[1] Hangzhou Dianzi Univ, Key Lab RF Circuits & Syst, Minist Educ, Sch Elect & Informat, Hangzhou 310018, Peoples R China
[2] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 211189, Peoples R China
[3] Polytech Montreal, Dept Elect Engn, Poly Grames Res Ctr, Montreal, PQ H3T 1J4, Canada
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2021年 / 31卷 / 05期
关键词：
Band-pass filters; Microwave filters; Resonator filters; Filtering theory; Wireless communication; Substrates; Passband; Bandpass filters; dual-mode; half-mode substrate-integrated waveguide (HMSIW); transmission zeros (TZs); SIW FILTER; PLANAR; CIRCUITS;
D O I：
10.1109/LMWC.2021.3066569
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 a novel class of compact dual-mode bandpass filters based on half-mode substrate-integrated waveguide (HMSIW) cavities. By using both TE102 and TE301 modes of the HMSIW rectangular cavity as resonant modes and TE101 mode as nonresonating mode, a novel HMSIW doublet with two poles and two transmission zeros (TZs) is implemented. The TZs can be located at one side or both sides of the passband. Therefore, flexible responses can be obtained. A two-pole HMSIW filter with asymmetric response and a four-pole HMSIW filter with quasi-elliptic response have been designed, fabricated, and measured, to demonstrate and verify the proposed structure. Compared with substrate-integrated waveguide (SIW) counterparts, the dual-mode HMSIW filters have the advantage of smaller size.
引用
收藏
页码：441 / 444
页数：4
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