DESIGN OF A BROADBAND PLANAR MONOPOLE MIMO ANTENNA

A broadband multiple-input multiple-output antenna with a size of 60 x 120 x 1.6 mm is presented for the smart phones. Enhanced performance of the antenna is achieved by utilizing dual radiator chopping and ground plane slitting. Supplemental L-shaped meandered ground structure over the top of radiator was added to enhance the performance in the lower frequency band. The proposed antenna covers two frequency bands for return loss <-6 dB, that is, 0.8-0.96 and 1.7-2.7 GHz, respectively, specified for mobile phone operation. The antenna is fabricated and measured results are obtained for return loss, isolation, envelope correlation, and radiation pattern. (C) 2014 Wiley Periodicals, Inc.