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| The Coupling Mechanism and Optimization Analysis Model for Crosstalk in PCB |
| Lü Fei-yan; Sha Fei |
| EMC Lab,College of E&I,Beijing Jiaotong University,Beijing 100044, China |
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Abstract The coupling path of crosstalk in PCB is analyzed both in the frequency and the time domains in this paper. The influence of the coupling capacitance and the resistances near and far from the source in the victim circuit is investigated. The optimization model is derived mathematically in time domain for the 2-n circuit model. The conclusion is deduced that the maximum crosstalk is derived from the rising edge of the aggressive signal. The simulation results by use of Hyperlynx software are compared with regards to the coupling capacitance and the coupling length, which demonstrate the theoretical conclusion.
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Received: 19 February 2004
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2005, Vol. 27 
