Design of Rectangular Microstrip Patch Antenna Using Aperture Coupled Fed for S-Band Application

Abstract

This paper discussed the design of rectangular microstrip patch antennas using a coupled aperture fed. The antenna is designed for working on frequency of 3.2 GHz for S-band applications. The antenna substrate is FR4 with a thickness of 1.6 mm and a dielectric constant of 4.4. The initial design was done theoretically using mathematical approximation. Simulations were then performed for antenna characterization by using AWR simulator to obtain the optimal design. Antenna was then fabricated and measurements were done by using Anritsu vector analyser. Simulation and measurement results show similarities. The measurements show the antenna return loss of − 18.27 dB at a frequency of 3.2 GHz and 59.3 MHz (3.1804 – 3.2397 GHz) bandwidth for VSWR smaller than 2.