A Wideband Filter Based on Shielded QMSIW Loading Complementary Split Ring Resonators

Nuo Liu,Xiaoxian Liu,Chenhui Fan,Zhangming Zhu

2023 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)（2023）

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摘要

In this paper, a minimized bandpass filter (BPF) with wide passband is demonstrated based on shielded quarter-mode substrate integrated waveguide (S-QMSIW) cavity. The loaded complementary split ring resonators (CSRRs) can enhance the coupling between SIW cavities. The Cross-coupling further enhances the coupling between input and output and introduce a transmission zero. The wideband filter is operated at 14.09 GHz. The fractional bandwidth is 44.5% and the insertion loss (IL) is 0.98 dB.

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关键词

Shielded quarter-mode substrate integrated waveguide (S-QMSIW),Complementary split ring resonators (CSRRs)

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