A wideband bandpass filter with compact size and good selectivity

被引：0
|
作者：
Nie, Wei [1 ]
Han, Zhi-Chao [1 ]
Pang, You-Bing [2 ]
Tan, Xiao-Heng [3 ]
Zhou, Mu [1 ]
Xie, Liang-Bo [1 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Sch Commun & Informat Engn, Chongqing, Peoples R China
[2] China Elect Technol Grp Corp, Sichuan Inst Solid State Circuits, Chongqing, Peoples R China
[3] Chongqing Univ, Sch Microelect & Commun Engn, Chongqing, Peoples R China
来源：
2020 IEEE ASIA-PACIFIC MICROWAVE CONFERENCE (APMC) | 2020年
关键词：
bandpass filter; wideband; microstrip coupled line; transmission zero;
D O I：
10.1109/APMC47863.2020.9331669
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 paper presents a microstrip wideband bandpass filter (WBPF) with high selectivity and compact size. The proposed WBPF consists of quarter-wavelength microstrip coupled three-line sections with grounding via. Due to the strong coupling between the coupled-lines, a tri-mode bandpass responses could be realized. In addition, two grounding vias are attached to the coupled lines to generate multiple transmission zeros to improve the selectivity of the proposed filter, and the proposed filter demonstrates quasi-elliptic function wideband bandpass response. Finally, the proposed filter is implemented and fabricated for measurement, and the measured results match the analytical ones very well.
引用
收藏
页码：219 / 221
页数：3
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