Design of electromagnetic field immunity test system applying with 128-element array antenna

We examined about the electromagnetic field immunity test system applying the array antenna technology. This system is able to get the high uniformity of electric field and the high power electric field near the antenna, in a wideband, by the beam forming technology. This system applied the array antenna technology which is constructed by 128-element array antenna with low price and low power amplifiers. To develop this system, we calculated the relationship among the electric field uniformity, the electric field strength, the curvature radius of the array antenna, and the distance from the antenna to uniform field area (UFA). Then, we designed and constructed this system. In this paper, we explain these considerations and characteristics of this system.