R.F. Impedance of the Electrical Network of Cars

Abstract

Measurements of the r.f. impedance of the electrical network of cars - observed from several input. points - have been made. Using parameters that were averaged over the measurements, a normalized network - which is equivalent to the electrical system operating either as a disturbing source or as a disturbed load - has been determined. Though the measurements were performed in the frequency range 0.5 - 108.MHz with satisfactory results, the proposed normalized network should be used up to 30 MHz only: a more extensive investigation for frequencies above 30 MHz is necessary.