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2015-12-29

Common-Mode Suppression Design for Gigahertz Differential Signals Based on C-Slotline

By Wei Zhuang, Yongrong Shi, Wanchun Tang, and Yafei Dai
Progress In Electromagnetics Research C, Vol. 61, 17-26, 2016
doi:10.2528/PIERC15090603

Abstract

For wideband common-mode noise suppression in high-speed differential signals, a low-cost compact filter is proposed and designed by etching two coupled C-slotlines on the ground plane. It is found that the bandwidth of the common-mode stopband over -10 dB is from 2.4 GHz to 6.35 GHz with no degradation of the differential-mode insertion loss and group delay within the wide common-mode stopband. In time domain, the differential signal eye diagram is not deteriorated as well. In addition, an equivalent circuit model is developed and provides a quickly prediction of the common-mode stopband. The results show a good consistency between the simulations and measurements.

Citation


Wei Zhuang, Yongrong Shi, Wanchun Tang, and Yafei Dai, "Common-Mode Suppression Design for Gigahertz Differential Signals Based on C-Slotline," Progress In Electromagnetics Research C, Vol. 61, 17-26, 2016.
doi:10.2528/PIERC15090603
http://jpier.org/PIERC/pier.php?paper=15090603

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