In this paper, various type of different feed technique is proposed which is applicable to a dual-band MIMO antenna element. They can be divided based on power transfer mechanism from feed line to patch. After describing various feeding techniques the paper give a better understanding of the u-shaped slots. The u-shaped slots are introduced to reduce the coupling between the two dual-broadband antenna elements. The bandwidth achieved for dual broadband antennas elements are 1.6GHz for lower band (1.7GHz) and 5GHz for upper band (5.4GHz).