Design of Broadband Band-Pass Filter with Cross-Coupled Line Structure

被引：7
|
作者：
La, Dong-Sheng [1 ,2 ]
Guan, Xin [1 ]
Li, Hong-Cheng [1 ]
Li, Yu-Ying [1 ]
Guo, Jing-Wei [3 ]
机构：
[1] Northeastern Univ Qinhuangdao, Sch Comp & Commun Engn, Qinhuangdao 066004, Hebei, Peoples R China
[2] Guangxi Key Lab Wireless Wideband Commun & Signal, Guilin 541004, Peoples R China
[3] Yanshan Univ, Sch Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2020年 / 2020卷
基金：
中国国家自然科学基金;
关键词：
This paper presents a broadband band-pass filter with cross-coupled line structure. The cross-coupled line structure is composed of the parallel coupled lines and an open stub. It can be analyzed by the odd- and even-mode method due to its symmetric structure. There are three transmission poles in the passband and two transmission zeros out of passband. Then; the influence of the impedance parameters on the transmission zeros and transmission poles are analyzed. Then; the physical parameters of the proposed band-pass filter are given. And using HFSS for simulation and optimization; the final insertion loss and return loss of filter are obtained. The simulation and measurement results are in good agreement; which validates the design idea. © 2020 Dong-Sheng La et al;
D O I：
10.1155/2020/5257325
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 broadband band-pass filter with cross-coupled line structure. The cross-coupled line structure is composed of the parallel coupled lines and an open stub. It can be analyzed by the odd- and even-mode method due to its symmetric structure. There are three transmission poles in the passband and two transmission zeros out of passband. Then, the influence of the impedance parameters on the transmission zeros and transmission poles are analyzed. Then, the physical parameters of the proposed band-pass filter are given. And using HFSS for simulation and optimization, the final insertion loss and return loss of filter are obtained. The simulation and measurement results are in good agreement, which validates the design idea.
引用
收藏
页数：5
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