Abstract: “Slots are inevitably presented in actual enclosure of electronic equipment due to assembly process. These slots break the integrity of the enclosure and are considered to be the main reason for electromagnetic energy leakage. Conductive gasket and metal reed are the important sealing structure to improve the shielding effectiveness (SE) of enclosure with good elasticity and conductivity. In the paper, the transmission-line matrix method is employed to investigate the electromagnetic shielding performance of enclosure which is sealed with conductive gasket and metal reeds. As shown by the numerical results, the SE of enclosure with conductive gasket and metal reeds will be greatly improved. The greater the width of conductive gasket and the smaller the finger gaps, the higher the SE of enclosure. The conclusions can be used for electromagnetic shielding design of the enclosure with slots.”

Keywords: electromagnetic sealing, conductive gasket, metal reed, shielding effectiveness, Numerical Analysis