Crosstalk noise analysis for unequal length interconnects on PCBs using length dependent parameters

Abstract

In this paper the crosstalk noise in parallel traces is investigated; in order to approach this propose, two different RLC models are used. These models are applied to two traces which are parallel and are not equal in length. These two models are different in the value of the resistances, inductances and capacitances. In the first case, the equivalent RLC model is used. In other words, the value of the RLCs are equal in all segments in the first case that is named the conventional model. The second case is the RLC non-equivalent model (segmented model with un-equal RLCs). In each of these two cases, we use three segments for simulations and the S-Parameters of the traces are extracted in order to study the accuracy of the models. Finally the results are compared with the full wave simulations and it is shown that the RLC non-equivalent model is more accurate in comparison with the equivalent model.