A Differential-Signaling Analysis with the Decoupling-Capacitor loaded Rectangular Power-Bus by a Fast Calculation Method

摘要

This paper analyzes the decoupling capacitor (DeCap)'s mitigating effects on the resonance from the differential signaling for the rectangular power-bus structure. Besides, it is suggested the single-sum modal expression is used to consider lumped-element loading in the structure without loss of accuracy and it leads to fast calculation. The validity of the present single-sum expression is proven by the use of the double-sum and the FDTD method. And the DeCap is shown to improve the differential-signaling performance.