A Wideband Microstrip Common-Mode Suppression Filter Using Signal Interference Techniques

被引：3

作者：

Li, Lin ^{[1
]}

Yang, Jun-Xiu ^{[1
]}

Li, Hua ^{[2
]}

Zhang, Teng-Hui ^{[1
]}

Wu, Jia-Jia ^{[1
]}

Wang, Zhuo-Ying ^{[1
]}

机构：

[1] Zhejiang Sci Tech Univ, Sch Informat, Hangzhou 310018, Zhejiang, Peoples R China

[2] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2017年 / 27卷 / 04期

关键词：

Common-mode (CM) suppression filters; signal interference; transmission zero; DESIGN;

D O I：

10.1109/LMWC.2017.2678404

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：

A fully-planar common-mode (CM) suppression filter is presented. Because of destructive interference between two different CM signal paths, multiple transmission zeros are created to reject CM signals. The positions of transmission zeros can be controlled, and the desired rejection level and wide stopband can be obtained by adjusting the characteristics impedance of the transmission lines of the topology. The design concept is validated through the development of a microstrip prototype. The fabricated filter exhibits a measured CM rejection better than 20 dB in a 44% bandwidth and a measured DM insertion loss lower than 0.5 dB within the CM stopband.

引用

页码：341 / 343

页数：3

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