In-Situ Measurements and Simulation Analysis of HIRA UWB System

Ultra wide band is a radio technology offers very low energy level for short range with very high bandwidth. Impulse Radiating Antennas (IRA) are special class of antennas suited for radiating very fast pulses in a narrow beam. A fast-rising step-like signal fed into the antenna produces an approximate delta-function response in the far field. In the present paper an Insitu measurements of a UWB system with Half Impulse Radiating Antenna (HIRA) installed SAMEER CE3 was presented. The Installed UWB antenna structure and its radiation patterns are simulated using CST 3D EM simulation tool to study & analyze the distribution of EM far fields, radiation pattern and surface currents distribution. The simulation results are verified with practical measurements, and both are in close agreement. This system can be utilized for in situ transient EMP pre-compliance testing to evaluate the equipment against EMP events.