Patent ID: 7141962

Claim:
An electrical magnetic interference (EMI) test system, disposed in a EMI chamber, for detecting an electromagnetic wave radiated from an equipment under test (EUT), the EMI test system comprising: a testing table for supporting the EUT; a horizontal antenna positioned at a first location of the EMI chamber for receiving the electromagnetic wave radiated from the EUT, and producing a horizontal electric wave; a vertical antenna positioned at a second location of the EMI chamber for receiving the electromagnetic wave radiated from the EUT, and producing a vertical electric wave; and a processing unit coupled to the horizontal antenna and the vertical antenna for transforming and analyzing the horizontal electric wave and the vertical electric wave, the processing unit including a control unit disposed in the EMI test system for adjusting respective heights of the horizontal antenna and the vertical antenna, a signal converting unit including an amplifier connected to the horizontal antenna and the vertical antenna respectively for amplifying the horizontal electric wave and the vertical electric wave, and further including a transformer connected to the amplifier for transforming the horizontal electric wave and the vertical electric wave into respectively a horizontal signal and a vertical signal, and a data processing unit connected to the transformer for receiving and analyzing the horizontal signal and the vertical signal.