Experimental study and theoretical analysis on shielding effectiveness of enclosure with aperture

Based on experiments, the influence of different characteristic of the aperture on shielding effectiveness of enclosure with the frequency was analyzed by the multi-point average measure method and the effecting factors which influence the shielding effectiveness (SE) of enclosure were discussed in this paper. The results of experiment were analyzed separately by the equivalent dipole method (EDM) and the equivalent transmission line method (ETLM) and the advantages and disadvantages of the two methods were researched for providing reference for further study on the general calculation method of shielding effectiveness of enclosure with aperture.