Influence of aperture size parameters on 5G shielding effectiveness of shielding cavity

Abstract

In order to ensure the shielding performance of the shielding cavity of the 5G equipment in the converter station, and to clarify the rule of the influence of the number and size of the cavity aperture on its shielding effectiveness, this study constructs the electromagnetic shielding effectiveness analysis model of the shielding cavity under the HFSS simulation environment, and analyzes the spatial distribution characteristics of the electromagnetic radiation of the 5G microstrip patch antenna. Then, the influence of the slot height of the cavity on the shielding effectiveness is analyzed. It is found that the shielding effectiveness under different slot diameters increases with the increase of the slot height, and the electromagnetic radiation intensity decreases from 24.81 dB at 0.5 mm height to 16.29 dB at 2.0 mm height. At the same time, the analysis shows that the shielding effectiveness decreases with the increase of the slot diameter, and the maximum radiation intensity increases from -15.13 dB at 1.0 mm diameter to 49.87 dB at 7.0 mm diameter. Finally, with a certain proportion of the aperture area, it is found that the shielding effectiveness of the shielding cavity is continuously improved with the increase of the aperture number and the decrease of the aperture diameter.

Keywords

• 5g communication technology
• electromagnetic radiation
• shielding cavity
• aperture dimension parameters