Vivaldi-based UWB Monopulse-Antenna

This article describes a design of an UWB-Monopulse Antenna. A creation of the sum and difference beams is achieved over the large bandwidth from 3 GHz till 11 GHz. The distribution of the peak value of the impulse response over the angle around the antenna is calculated from the measurements. This information serves as an input data for the creation of the look-up table, which assigns the processed amplitudes and phases at both ports of the antenna to the certain angle. This allows for a sensing with very high range resolution with simultaneous determination of the angular direction of the target. The combination of UWB and Monopulse-Technique offers a solution for a precise target localization, where no antenna movement or beam steering technique must be applied.