Length determination of equivalent lines in asymptotic approach for high-frequency field coupling to transmission lines

摘要

The length determination rule of two equivalent lines in asymptotic approach for high-frequency field coupling to transmission lines is investigated. The induced current along transmission lines with different structure exposed to high frequency plane wave is calculated using asymptotic approach and full-wave analysis commercial software NEC respectively. Results show that the length of two equivalent lines recommended in literature sometimes leads to incorrect results. Length determination rule of equivalent lines is suggested according to induced current results obtained using different length of equivalent lines.