Compact Highly-Selective Bandpass Filter Based on Triple-Mode Ridge Substrate Integrated Waveguide Cavity

被引：5
作者：
Liu, Qing [1 ]
Qian, Hang [1 ]
Zhang, De-Wei [1 ]
Gong, Ke [2 ]
Liu, Qi-Kun [1 ]
机构：
[1] PLA Strateg Support Informat Engn Univ, Zhengzhou 450001, Peoples R China
[2] Xinyang Normal Univ, Coll Phys & Elect Engn, Xinyang 464000, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2023年 / 33卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Bandpass filters (BPFs); substrate integrated waveguide (SIW); triple-mode; DUAL-MODE; WIDE-STOPBAND; SIW FILTER; MICROSTRIP; RESONATOR; ORDER;
D O I：
10.1109/LMWT.2023.3276794
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 compact highly-selective bandpass filter based on a novel triple-mode ridge substrate integrated waveguide (TMRSIW) cavity is proposed in this letter. The new TMRSIW cavity is realized by multiple capacitive-loaded patches (CLPs) with short circuit posts (SCPs), which can manipulate those three modes with controllable resonances and reduce their resonances. For the demonstration, a design example with a center frequency of 7 GHz and bandwidth (BW) of 160 MHz is fabricated and measured to verify the performance of the designed filter. The measured results agree well with the simulated ones. Compared with traditional triple-mode SIW filters, the size of the proposed TMRSIW filter can be reduced by 48.3%.
引用
收藏
页码：1274 / 1277
页数：4
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