Design and analysis of L-slots with rectangular slot multiband microstrip rectangular patch antenna

Abstract

In this paper, performance of a rectangular microstrip patch antenna fed by microstrip line has been designed to operate for multiband applications. It consists of a rectangular patch with four L-slots at the corners and one rectangular-slot in the center. The antenna has designed using FR-4 lossy substrate material with relative permittivity εr is 4.3 and thickness of 1.6mm. Simulation has realized by using CST microwave studio software and the results shows that the antenna resonates at the frequencies of 2.4GHz, 3.8GHz, 4.9GHz, 6.5GHz, 7.2GHz and 8.1GHz.