Abstract: A novel printed monopole antenna with dual wideband is presented for simultaneously transmitting as well as receiving in wireless local area network (WLAN). A compact and optimized design of a rectangular printed monopole antenna with FR-4 substrate and coaxial feeding technique is presented. The proposed antenna has a double T shape structure mainly designed for dual-band operation at 2.4 GHz and 5.2 GHz for Wireless Local Area Network (WLAN) applications which is in ISM band. This antenna has good impedance matching, return loss (> than -10dB), radiation patterns and consistent gain in required frequency band. The calculated and measured results in terms of return loss and VSWR shows good agreement and the results also shows good wideband characteristics.

Keywords: Dual Band, Monopole, WLAN, Coaxial, ISM.