A time-domain physical optics heuristic approach to passive intermodulation scattering

Author

Selleri, Stefano ; Bolli, Pietro ; Pelosi, Giuseppe

Author_Institution

Dept. of Electron. & Telecommun., Florence Univ., Italy

Volume

43

Issue

2

fYear

2001

fDate

5/1/2001 12:00:00 AM

Firstpage

203

Lastpage

209

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

Keywords

electromagnetic fields; electromagnetic wave scattering; intermodulation; physical optics; satellite antennas; time-domain analysis; EMC design; antenna farms; communication satellites; electromagnetic CAD software; electromagnetic scattering; heuristic approach; heuristic nonlinear extension; impinging electromagnetic fields; intermodulated frequencies; materials junction; passive intermodulation scattering; simulation results; time-domain physical optics; Antenna measurements; Artificial satellites; Electromagnetic fields; Electromagnetic measurements; Electromagnetic scattering; Frequency; Optical materials; Physical optics; Satellite antennas; Time domain analysis;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.925541

Filename

925541