Bandwidth Enhancement of Different Patch Shaped Antennas

Abstract

Antenna in wireless communication plays an important role to direct the field in one direction. For different applications there are wide range of antenna. Here microstrip antennas with four different shapes i.e. rectangular, elliptical, bowtie, rectangular with slot, are implemented using Ansoft HFSS. All the antennas are operated at the frequency of 2.45GHz. The bandwidth of rectangular patch antenna, elliptical patch antenna, rectangular slot antenna, bowtie antenna is 24.9MHz, 8.2 MHz, 136.2 MHz and 386.5 MHz respectively. The parameters of antenna like gain, Voltage Standing wave ratio(VSWR) and return loss is presented. It is found that Bowtie antenna gave the best bandwidth amongst them.