Analysis and Simulation of the Effects of Superstate Layer on the Performance of Microstrip Antennas

Abstract

Nowadays studies show that when layers of dielectric superstructures are placed above a microstrip patch antenna, changes in its gain and resonant characteristics are observed. Thus, this paper investigates the effect of the height of the superstrate above the antenna by simulation, obtained using High-Frequency Structure Simulator (HFSS) software that is the commercial tool used here for microwave structures design. As a result, we obtain a better performance, main the gain of the antenna of the antenna, by incorporating those superstrates. The analyzed antenna covers the frequency S-band, with a range from 2 GHz to 4 GHz. This antenna structure with a superstrate can be used in communications satellites.