COUPLING OF ELECTROMAGNETIC-FIELDS TO COPLANAR STRIPLINES WITH DISCONTINUITIES

A circuit model for the coupling of externally generated electromagnet ic fields to coplanar stripline interconnections with resistive and ge ometric discontinuities on lossy integrated circuit substrates is pres ented. The simplicity and fast speed of the model enable computer-aide d analysis of externally induced electromagnetic noise in integrated c ircuit interconnects to be carried out. A general CAD algorithm is dev eloped based on this model, and is applied to realistic coplanar strip interconnect line prototypes which are selected from a practical micr owave integrated circuit. The effects of dielectric losses in the inte grated circuit substrates and the discontinuities in the conducting tr acks on the wave coupling are investigated in isolation.