Study of Shielding Effectiveness of Metal Cavum Based on FEKO

EM leakage of weapon system has been a primary way,of which military strategetic purpose is divulged and important military establishment is exposed.Study of shielding effectiveness of metal cavum,which can be the shielding encloser for airplane and missile,it is the reference for estimating the EM leakage of airplane or missile in the metal cavum.Therefore,in order to study SE of different metal cavum on EM leakage at frequency range 10~70 MHz,software FEKO is used to set up the metal cavum model,inside which a low frequency Dipole is placed as EM leakage.The analytical results show that SE of aluminum cavum on EM leakage at frequency range 10~40 MHz is perfect.