Generation Mechanism of R.F. Noises on Power Lines

This paper describes that main R.F. noises induced on power supply lines are damped oscillation waveforms, clarifies their generation mechanism from the relationship between the resonance points existing on frequency-impedance characteristics measured about power supply lines and the “S” defined there and by applying the theory of resonance circuits made up of lumped constant L-C-R to the distributed constant circuits (that is, power supply lines), and insists that their suppression technique is to get rid of resonance points.