Abstract
In this paper, a broadband antenna for mobile wireless communication is presented and experimentally investigated. The proposed antenna is incorporated with triangle shape radiator and defected ground. The main radiator is connected with 50 Omega microstrip feed line. The antenna has achieved measured VSWR <= 2 impedance bandwidth of 1.05 GHz (1.66-2.71 GHz) and 1.42 GHz (3.28 -4.7 GHz), which cover GSM 1800, 1900, 2100, UMTS, Bluetooth (2.40-2.80 GHz), WLAN (2.40-2.485 GHz), WiMAX (2.50-2.69 GHz), and WiMAX (3.40-3.60 GHz), Moreover, the antenna has shown good antenna performances with stable radiation pattern and appreciable gain.