Design of a Microstrip Hairpin Bandpass Filter with Wide Stopband

被引：0
|
作者：
Zheng H.-Y. [1 ]
Zhu W.-G. [1 ]
Zhang Z.-T. [1 ]
Zhang X.-L. [1 ]
Hu S.-W. [1 ]
机构：
[1] College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing
来源：
Hu, Shan-Wen (shanwenh@njupt.edu.cn) | 1600年 / Beijing University of Posts and Telecommunications卷 / 44期
关键词：
Hairpin structure; High selectivity; Microstrip line; Miniaturized filter; Wide stopband;
D O I：
10.13190/j.jbupt.2020-077
中图分类号：
学科分类号：
摘要：
To obtain a highly selective, wide stopband filter and meet the requirement of sub-6GHz band compact portable communication devices, a new type of microstrip hairpin bandpass filter is proposed. Compared with the conventional structure, the proposed adds a quarter-wavelength open microstrip line to the resonance unit which is connected to the input and output ends, and adds metal holes on both sides of the input feeder of the filter. The wide stopband is achieved by transmission zeros at the parasitic passband. The proposed filter is processed and tested. It is shown that it can realize a wide stopband and has good frequency selection characteristics. © 2021, Editorial Department of Journal of Beijing University of Posts and Telecommunications. All right reserved.
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页码：92 / 96
页数：4
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