A time-domain physical optics heuristic approach to passiveintermodulation scattering |
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Authors: | Selleri S Bolli P Pelosi C |
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Affiliation: | Dept. of Electron. & Telecommun., Florence Univ.; |
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Abstract: | 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 nonlinear extension to the time-domain physical optics (TD-PO) 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. Simulation results are compared with measures to validate the model |
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