Electromagnetic shielding technology and structure design

With the development of the electronical technology, the electromagnetic interference becomes more serious, so the electromagnetic compatibility design has been a very important content of electronics. Electromagnetic interference energy is transferred through conductive coupling and radiative coupling. To meet requirements of electromagnetic compatibility, filtering technology is employed for conductive coupling, i. e. suppressing with EMI fihering devices, while radiative coupling is restrained with shielding technique. Electromagnetic shielding is a key way to avoid the electromagnetic interference, and most of the problem can be resolved by this way.