학술논문
Uncertainties in transfer impedance calculations
Document Type
Conference
Author
Source
2016 ESA Workshop on Aerospace EMC (Aerospace EMC) Aerospace EMC (Aerospace EMC), 2016 ESA Workshop on. :1-6 May, 2016
Subject
Language
Abstract
The shielding effectiveness of metal braids of cables is governed by the geometry and the materials of the braid. The shielding effectiveness can be characterised by the transfer impedance of the metal braid. Analytical models for the transfer impedance contain in general two components, one representing diffusion of electromagnetic energy through the metal braid, and a second part representing leakage of magnetic fields through the braid. Possible sources of uncertainties in the modelling are inaccurate input data (for instance, the exact size of the braid diameter or wire diameter are not known) and imperfections in the computational model. The aim of the present paper is to estimate effects of variations of input data on the calculated transfer impedance.