Design of L-band Metal Type Vivaldi Antenna Array

A wideband Metal Type Vivaldi antenna array designed at L-band is elucidated in this paper. Metal Vivaldi antennas provide better performance in terms of bandwidth and radiation efficiency due to their robust construction and higher conductivity compared to PCB's. They can withstand higher power levels without suffering from degradation in performance. In this paper, the antenna array consists of 40 Vivaldi elements placed at a distance of 0.5 lambda. The proposed antenna array is simulated at 1.3GHz frequency. The simulated array results show that the VSWR is less than 1.4 and gain of 5.5dB.