Design of a printed MIMO/diversity monopole antenna for future generation handheld devices
This article presents a printed crescent-shaped monopole MIMO diversity antenna for wireless communications. The port-to-port isolation is increased by introducing an I-shaped conductor symmetrically between the two antenna elements and shaping the ground plane. Both the computed and experimental results confirm that the antenna possesses a wide impedance bandwidth of 54.5% across 1.62.8 GHz, with a reflection coefficient and mutual coupling better than ?10 and ?14 dB, respectively. By further validating the simulated and the measured radiation and MIMO characteristics including far-field, gain, envelope correlation and channel capacity loss, the results show that the antenna can offer effective MIMO/diversity operation to alleviate multipath environments.  2013 Wiley Periodicals, Inc. Int J RF and Microwave CAE 24:348359, 2014.
mimo monopole antenna port-to-port isolation reflection coefficient mutual coupling