Compact Coax Fed MIMO Antenna for LTE-Advanced and IEEE 802. 16m Operations in 4G Mobile Terminals
A compact 2-port coax feed MIMO antenna is presented in this paper to operate LTE and WiMAX frequency bands for the application of compact smart mobile terminals. The overall dimension of proposed slot antenna can reach 44mm×50mm. The proposed antenna structure contains two layers, which has a rectangular patch, a pair of small-N shaped strips and two G- shaped antenna structures. The previously mentioned structures are simulated with the suitable FR4 substrate to achieve operating frequencies at 1.8GHz and 2.3GHz. In the proposed antenna design, certain parts of the patch respectively excited the two resonant frequencies of LTE and WiMAX operations.