Investigation of Radiated Immunity Testing Using White Gaussian Noise and Multitone Signals

In this paper, we describe the experimental investigation of radiated immunity testing, which applies broadband test signals to reduce the test time. This study is performed using white Gaussian noise and multitone signals generated by an arbitrary waveform generator. We propose an E-field generating technique with a feedback system for correcting the frequency characteristics of a signal path, including the amplifier, coaxial cable, transmitting antenna, and propagation, and with a notch function for rejecting unwanted frequency ranges. Furthermore, the experimental results show the effectiveness of using the proposed technique.