A dual band monopole microstriop printed antenna for WLAN(2.4/5.2/5.8 GHz) application

Wireless local area network (WLAN) is a cost effective and feasible solution for high-speed data connectivity and enabling user mobility. The increasing demand in WLAN technology integrates both IEEE 802.11.b and IEEE 802.11 g and IEEE 802.11a frequency bands into one device to meet the requirement and development of a dual band antenna. In this paper a dual band printed monopole antenna has been proposed for WLAN application. The antenna was designed on a FR4 substrate with a dimension of 36mm×32mm×1.6mm using the microstrip line as the feeding technology. A commercial software HFSS (High Frequency Structural Simulator) has been used to design the antenna and simulate its´ all parameters. The simulation result shows that the designed antenna generates two different resonant frequencies to cover 2.4/5.2/5.8 GHz WLAN band with a wide band from 2.20-2.64 GHz and 5.10-5.84 GHz. The return loss, radiation pattern, gain and other critical design parameters are also investigated in detail. All these properties verify that the proposed antenna is a good solution for dual-band WLAN communication applications.