COuld some electronics guru please shed some light on this ? We know that detailed analytical models(Kirshchning and Jansen, Hammarstadt and Jansen, Getsinger, Wheeler etc.,) exist for calculating the homogeneous and frequency dependent characteristic impedances and dielectric constants for two interacting parallel micro strip lines.
The question is, what about several parallel micro strip lines as on a printed circuit board ? A simplistic approach would be to compute the homogeneous and frequency dependent characteristic impedances and dielectric onstants pairwise, i.e., nearest neighbours (adjacent pairs of transmission lines) only, and ignore the interactions of next nearest micro strip lines. How id this tackled in practice ?
Thanks in advance for your thoughts on this.