A Novel Compact Square Patch Antenna for Wireless LAN Applications

Wireless Local Area Networks (WLANs) is one of the major backbones of accessing the internet in urban areas. WLAN uses the frequency in the unlicensed ISM band at 2.4GHz. Nowadays this has increased traffic over the channel. Hence an alternative to this problem presents using the WLAN in other frequencies. The best choice is to use the U-NII band which involves operation over the 5GHz frequency range. To use this, the components of communication should be developed. This paper presents a compact square patch antenna that resonates at 5.4GHz and implemented using the FR4 substrate. The return loss for the band is -40dB. The bandwidth is about 135MHz and the E-plane and H-plane parameters are satisfactory with the bandwidth.