A Stopband-Improved Dual-Band Bandpass Defect Cavity Filter Using A Multimode ISGW Cavity

被引：3
|
作者：
Lin, Qiu-Hua [1 ]
Shen, Dongya [1 ,2 ]
Ma, Zuhui [1 ]
Zhang, Xiupu [2 ]
Zhong, Xiuxiang [1 ]
机构：
[1] Yunnan Univ, Yunnan Prov Engn Lab Cloud Wireless Access & Hete, Kunming 650500, Yunnan, Peoples R China
[2] Concordia Univ, Dept Elect & Comp Engn, iPhoton Labs, Montreal, PQ H3G 1M8, Canada
来源：
2021 IEEE MTT-S INTERNATIONAL WIRELESS SYMPOSIUM (IWS 2021) | 2021年
基金：
中国国家自然科学基金;
关键词：
Out-of-band suppression; ISGW; Rectangular Defect Multimode cavity;
D O I：
10.1109/IWS52775.2021.9499618
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 stopband-improved dual-band bandpass defect cavity filter based on Integrated Substrate Gap Wave-guide (ISGW) technology that has high integration but low insertion loss and self-encapsulation characteristic for suppressing EM interference is proposed. The single Rectangular ISGW Defect cavity that is perturbed by designing a metalized-cone has been designed by drugging rectangular cavity resonator in ISGW. Finally, the simulated result shows that: a 3-dB passband range of 1st:27.68-similar to 28.13GHz, f(01)=28.0 GHz, FBW=1.61 %; 2nd : 31.875 similar to 33.195GHz, f(02)=32.0GHz, FBW=4.13%, the out-of-band suppression less than -20dB (18.5-27GHz). Two transmission zeros on both sides of the passband improve the frequency selectivity. The Group Delay(2,1) also shows flat in each passband compared with using SIW tech.
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页数：3
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