Dual Band Patch Antenna for WLAN/Wi-Max Applications using Slot Loading.

In this paper, the design of a coaxially fed single layer single patch wideband microstrip antenna in the form of slot loaded rectangular patch antenna for WLAN/Wi-Max applications is presented. The slot loaded patch antenna resonates at 2.43 GHz and 3.5 GHz frequencies. It has been developed to be used in future WLAN/Wi-Max technologies. The proposed antenna is simulated using Computer Simulation Technology (CST) Microwave Studio. The simulated results show that the designed patch antenna achieves impedance bandwidth of 4.1% and 14.8% for VSWR< 2, covering a frequency range from 2.39 GHz to 2.49 GHz and 3.33 GHz to 3.849 GHz respectively. The antenna exhibits the return loss (S11) below -10 dB for frequency ranges mentioned.