New radiated RF immunity/susceptibility test method using RF-pulsed rotating-EM field

A new radiated radio-frequency (RF) immunity/susceptibility test method using an RF-pulsed rotating-electromagnetic (EM) field is proposed. Controlling the pulse width can generate the RF-pulsed signal having an arbitrary bandwidth. By using such RF-pulsed rotating-EM field as an incident-EM field of the immunity/susceptibility test, it is possible to easily investigate the immunity-weak points of electronic equipments. In this paper, the basic characteristics of the RF-pulsed rotating-EM field are clarified. Moreover, some susceptibility characteristics of a cavity with a slit measured by using the RF-pulsed rotating-EM field are shown as an example.