Near-Field Coupling of Transient Electromagnetic Field by Small Gap Discharge to a Transmission Line

Abstract

Induced output voltages of a transmission line by the transient near-field generated by a small gap discharge are calculated from the discharge current with the parameters of line length and the distance between the source and the line. The calculation is performed by using the coupling theory based on S-parameters which is applicable to microwave frequencies. The measured outputs agree well with the calculated ones.