Design of Rectangular Patch Array 2x4 Microstrip Antenna on C-Band for Weather Radar Applications

Abstract

Weather radars are essential for detecting rainfall, calculating movement, and estimating the object type (rain, snow, or hail). For such applications, the C-Band frequency range of 3.7 GHz to 4.2 GHz is typically utilized. A key challenge lies in improving antenna gain for better system performance. This research aims to design a C-Band downlink microstrip antenna at a working frequency of 3.9 GHz. We used a 4 x 2 array to increase the gain. Before designing, we did calculations using the CST Studio Suite 2019 software. The results of our design are a return loss of -29,171 dB, a VSWR of 1.061, a bandwidth of 713 MHz, and a gain of 8.23 ​​dB. This research contributes an improved gain and bandwidth contribution of this study is the better gain and bandwidth compared to similar studies.