An asymmetric spiral-shaped DGS optimized by genetic algorithm for wideband common-mode suppression

Yong Sheng Li Yong Sheng Li,Er Ping Li Er Ping Li,Xing Chang Wei Xing Chang Wei

doi:10.1109/apemc.2015.7175244

An asymmetric spiral-shaped DGS optimized by genetic algorithm for wideband common-mode suppression

Yong Sheng Li Yong Sheng Li, Er Ping Li Er Ping Li + Show 1 more

https://doi.org/10.1109/apemc.2015.7175244

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Publication Date: May 1, 2015

Citations: 7

Affiliation: Zhejiang University

#Common-mode Filter #Defected Ground Structure + Show 8 more

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Abstract

In this paper, we present a novel wideband common-mode suppression filter for high-speed differential signals using asymmetric spiral-shaped defected ground structure (DGS). It is optimized by using genetic algorithm (GA) to achieve a wide stopband. With the proposed method, a single asymmetric DGS, which is one of the most common structures, can provide over 10dB suppression of common-mode noise with a small differential insertion loss in a frequency range from 3.1 to 10.6GHz, covering the operating frequency band of the ultra-wideband (UWB) radio system. Our design fully shows the advantage of simplification when employing GA on DGS-based common-mode filter (CMF).

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