Design of Microstrip Patch Antenna for Bandwidth and Gain Enhancement using Parasitic Patches in Superstrate

Microstrip patch antennas are utilized in wireless communications, due to their adaptable qualities, including their planar structure, light weight, and ease of production. The patch antenna has a limited bandwidth. This study proposes a patch antenna design that uses parasitic elements to enhance the bandwidth and gain. The proposed antenna uses a FR-4 epoxy substrate with a relative permittivity of 4.4 and is designed for 8.4GHz. Unlike traditional antennas, which deposit parasitic patches on the substrate, this antenna uses parasitic patches in the superstrate. The proposed antenna’s gain is 9.32 dB, and its bandwidth is 2.07 GHz. Applications for the antenna’s operating frequency fall under the S-band and X-band categories. The developed antenna can be applied to mobile and aerospace applications.