Microstrip Patch Antenna with Enhanced Gain for 2.4 GHz Wireless Local Area Network Applications

Abstract

Wireless communication systems require high gain antennas for many reasons such as for better quality of receiving signals and for low transmitting power. In this paper, a rectangular microstrip antenna (MSA) with enhanced gain for 2.4 GHz wireless local area network applications is presented. The gain of the MSA is increased by using defected ground structure (DGS) technique and a reflected ground plane. The simulation of the designed MSA is performed in CST microwave studio. Using CST microwave studio, the dimensions of the MSA are optimized. The designed MSA is fabricated and measured. Simulated MSA parameters along with and measured results are presented and discussed. The comparison between simulated and measured results shows reasonable agreement. The MSA provides a high directivity of 7.282 dBi and gain of 3.675 dB which is much higher than the MSA with normal ground plane and without reflected ground plane. The designed MSA is suitable for 2.4 GHz wireless local area networks (WLAN) applications.