Simulation and research of the coupling characteristic of a cavity with Thin-Slot

Analysis of coupling characteristic of cavity with Thin-Slot has the theoretical value and applied value in design of electron product and estimate of EMC. In this paper we used the finite-difference time-domain (FDTD) method, analyze coupling characteristic of cavity. In order to reduce time of calculation and resource of CPU and memory, so the size of space is small than thin-slot, we used the Enhanced Thin-Slot Formalism (ETSF) to resolve the problem. Finally, educe the result and analyze the result.