Gain improvement of MSA array for base station using covered EBG

Abstract

This paper presents a sector antenna for mobile base station using microstrip antenna (MSA) array covered with Electromagnetic Band Gap (EBG). The advantages of this proposed antenna are light weight, easy fabrication and installation, and moderately high gain compare to the other antennas in the cellular phone system at present. Moreover, it provides a fan-shaped radiation pattern and wider in the horizontal direction. The paper also presents the procedures of a 1×4 array antenna using MSAs covered with the EBG structures design. A Computer Simulation Technology (CST) software has been used to compute the reflection coefficient (S11), radiation pattern, and gain of the antenna system. The bandwidth, at S11 (-10 dB), is between 1920 to 2170 MHz with a gain 17.6 dB of the antenna system.