The Effects of Cable routing and Length on The Resonant Frequencies in a Shielding Box

The effects of cable routing within a shielding box has been evaluated using a numerical electromagnetic package. Different cable paths with both constant and varying lengths have proposed. The cable-feed port reflection coefficient and radiated electric field were considered for different test cases. The influence of slot apertures in the enclosure itself, gaps between external structures and the enclosure body, and cable route on radiated electric field and excited slot resonances are examined. The coupling between enclosure and cable resonances and their effects radiation emission are presented. The effect of the wire path on the slot resonances is also shown. The simulations for representative cases were empirically verified through comparison with laboratory measurement.