An experimental study on compact dual frequency microstrip antenna

In order to meet the miniaturization requirements of portable communication equipment, researchers have given much attention to compact microstrip antenna. The size reduction and bandwidth enhancement are becoming major design consideration for practical applications of microstrip antennas.Nowadays patch antennas with slots are being investigated to make the antenna more compact and broadband, patches with single slot on its non radiating edges have been cut to yield a 2:1 VSWR bandwidth in the range of 10-20%.In this work compact dual frequency structure of three microstrip antennas were studied & simulated so that the measured performance can be predicted within reasonable accuracy.