A dual-band printed slot diversity antenna for wireless communication terminals

A dual-band printed slot antenna for wireless communication terminals is presented. It consists of two pairs of C-shaped slot and T-shaped slot and six pairs of slit. The C-shaped slots are fed by two 50-Ω microstrip lines. The antenna can provide two wide operating bands centered at 2.50GHz and 3.66GHz, to cover WLAN/2.5-GHz and the 3.5GHz WiMAX bands respectively. The isolation of the prototype are less than -20dB and -25dB across the above bandwidth in turn, while six pairs of slits play an important role in reducing mutual coupling. Good performances of proposed antenna over the operating bands are also obtained. The discussion shows that the antenna can be considered as a good candidate for multiple input multiple output (MIMO) systems.