Computationally-effective wideband worst-case model of wire radiation for analysis of electromagnetic compatibility

The worst-case model of a radiation field created by a wire segment placed above ground plane intended for the analysis of spurious couplings in complexes of radio and electronic equipment has been developed. The model is based on considering current waves in the segment. The solution for each current wave is interpreted as interference of the electric and magnetic fields radiated by four equivalent point sources, and the envelope of the amplitude-frequency characteristic passing through interference maxima is found. The correctness of the model is checked in a wide range of problem parameters values (the length of the wire ranges from 0.1 m to 10 m, the height of the wire above the ground plane ranges from 0.1 mm to 1 m, and the observation point position is up to 10 m away from the center of the wire) by comparison with results retrieved by computational electromagnetics methods.