Multi element antenna systems for diversity and MIMO terminal devices (original) (raw)

Compact multi element antenna systems for diversity and MIMO terminal devices operating at the 5.2 GHz ISM band under combining schemes are presented. The diversity performance is evaluated by means of the calculated envelope correlation coefficient, the mean effective gain and the effective diversity gain of the antennas. It is shown that by increasing the number of antenna elements the diversity gain increases in an asymptotic manner, which is attributed to the reduction of the antennas' efficiency.