A multiple input, multiple output (“MIMO”) antenna system is provided for operation on a radio frequency (“RF”) module that may be used in a wireless access device. The MIMO antenna system includes a plurality of multi-band antenna elements connected to a radio in a MIMO configuration. The multi-band antenna elements and the radio are configured to operate on a RF module. A reflector is formed on the RF module to contain the plurality of multi-band antenna elements and to concentrate signal communication in a sector, the plurality of multi-band antenna elements oriented to provide a sector coverage pattern formed by beam patterns generated by each of the multi-band antenna elements.