A time domain physical optics approach to passive intermodulation scattering problems

Passive intermodulation (PIM) is a phenomenon which often arises at junctions between different materials. This may be a major issue in tightly packed antenna farms as those typically present on communication satellites. Here an heuristic non-linear extension to the time domain physical optics is proposed, to take into account electromagnetic scattering at intermodulated frequencies when such a junction is illuminated by two impinging electromagnetic fields at different frequencies.

[1]  M. Runde.  Mass Transport in Stationary Contact Points , 1987 .

[2]  M. Runde,et al.  Experimental study of the conducting spots in aluminium contact interfaces , 1989, Proceedings of the Thirty Fifth Meeting of the IEEE Holm Conference on Electrical Contacts.

[3]  W.V.T. Rusch,et al.  Time-domain physical-optics , 1994 .