Compact dual-band microstrip antenna for universal 2.4 /5.2GHz WLAN applications

Abstract

In this paper, a compact rectangular microstrip dual frequency antenna is presented for wireless local area networks (WLAN) application in IEEE802.11a standard operating in the 2.4/5.2. The proposed design is achieved by loading two pairs of slits in the non-radiating edges. By increasing the length of the slits, the higher resonant frequencies are tuned. TM10 mode is exited for the 2.4 Band while the 5.2 Band is obtained by three resonant frequencies positioned side by side using the simultaneous excitation TM20 and two resonant frequencies issued of the operated slits. Good pattern radiation was obtained and the efficiency was optimal.