Abstract
The uncertainty of the simulation results is large due to the modeling error and numerical dispersion, when using the existing numerical simulation method to obtain the time-domain waveform of enclosure with apertures. In this paper, an approximate solution of the shielding effectiveness curve of any position in an enclosure with apertures was obtained by the analytic algorithm. The time-domain waveform of the enclosure with apertures was further analyzed by using the minimum phase method, and the validity of the modified method was verified by comparison with the CST simulation results. Compared with the current method of artificial intelligence for predicting shielding effectiveness, the method has a solid physical foundation and is fast and convenient. It has reference significance for system protection design, test and so on.
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