Design and Analysis of 3.5 GHz Rectangular Patch Microstrip Antenna for S-Band Applications

This research shows a novel patch antenna that is rectangular shaped. It is designed for 3.5 GHz frequency which is used for the applications of S-band. The antenna is structured using an FR4 substrate, which dielectric constant is 4.4 and a microstrip line is used as a feeding technique for the designed antenna. The performance of the antenna at 3.5 GHz produced a better return loss value of -43.52 dB, a large bandwidth of 2.3 GHz between 2.6 GHz and 4.9 GHz, and a gain of 2.646 dBi. To boost bandwidth, the substrate's thickness is raised. For analysis, various important performance parameters such as gain, radiation pattern, and return loss are determined from simulated results using CST Studio Suite software. The suggested antenna is assumed to function in the S-band.