Antipodal Vivaldi Antenna with Rectangular Loaded Slots for Radar and Tracking Applications

A slot-loaded antipodal vivaldi antenna for Radar and tracking applications is presented in this paper. To enhance the bandwidth, the antenna is loaded with rectangular slots to increase the electrical length of the antenna and proper impedance matching. The proposed antenna is analyzed, designed, and simulated using HFSS-2015 software, and is found to be operating efficiently in the required frequency range of 5-20 GHz with an enhanced bandwidth and unidirectional radiation patterns. The reported antenna is having the compact dimensions of 20 x 40 x 0.8 mm which are essential for radar and tracking applications. To optimize the low frequency, namely 6-10 GHz, parametric studies on various antenna parameters are conducted. A moderate gain of 8.5 dB at 20 GHz of the proposed antenna is reported.