Far-End Crosstalk Noise Reduction Using Decoupling Capacitor

Abstract

In this paper, a coupled miscrostrip line using the front-end decoupling capacitor is proposed to suppress the far-end crosstalk noise of the coupled microstrip line. The far-end crosstalk noise is greatly reduced from 63 to 25.7 mV. In order to further reduce the far-end crosstalk noise, a coupled microstrip line using the distributed decoupling capacitors is proposed. As compared with the coupled microstrip line using the front-end decoupling capacitor, the far-end crosstalk noise is further reduced from 25.7 mV to nearly 0 mV. In order to verify the simulation results, two coupled microstrip line circuits are fabricated and measured where the measurement results are in good agreement with the simulation results.