DESIGN OF DUAL BAND MICROSTRIP PATCH ANTENNA FOR WIMAX/WLAN APPLICATION

Abstract

In this paper, the design of microstrip patch antenna was proposed in which hexagonal shaped patch were
introduced for dual band operation. This antenna consists of one radiating patch, two dielectric substrates i.e., top
substrate and bottom substrate and set of T-shaped probes which establish the connectivity between the both substrates.
The isolation between two ports is improved by using split ring resonator based structure as feeding network. The overall
dimension of the antenna is 100× 100 ×13.2mm.The proposed antenna achieves -34dB isolation between two ports, the
return loss are
-21dB and -23dB over the operation band and desired impedance bandwidth is obtained. The proposed antenna is useful
for wireless communication applications like WIMAX/WLAN. The antenna was designed and simulated by using HFSS
simulation software.