Analysis of Shielding Effectiveness of Rectangular Cavity with Apertures to ESD Radiated Field by Transmission Line Method

摘要

This article first analyzes the characteristics of static electromagnetic pulse (ESD EMP) and introduces the basic theory of transmission line method (TLM), which is used to analyze shielding effectiveness of rectangular enclosure with apertures, The calculations show that TML shielding efficiency contours is in agree with FDTD calculated results. Then we expands the fundamental formulas to deal with the cases of round holes, multi-holes, and arbitrary angle of polarization.