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

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. TM
₁₀
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 TM
₂₀
and two resonant frequencies issued of the operated slits. Good pattern radiation was obtained and the efficiency was optimal.