MIMO antenna system

1. A multiple input, multiple output (“MIMO”) antenna system comprising:

a plurality of multi-band antenna elements connected to a radio in a multiple MIMO configuration, the multi-band antenna elements and the radio operating on a radio frequency (“RF”) module; and

a reflector formed 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, the reflector having a shape that enhances gain/directivity of the antenna elements and isolation between RF modules.

2. The MIMO antenna system of claim 1 where:

the shape of the reflector is defined by a three-sided wall that forms two corners on opposite sides of a first side positioned perpendicular to a radial axis extending from an opposite end of the RF module, the three-sided wall having an opening opposite the first side.

3. The MIMO antenna system of claim 1 where:

each of the plurality of multi-band antenna elements includes at least one notch antenna printed on a printed circuit board where the multi-band antenna element is mounted perpendicular to the RF module with a ‘V’ pattern formed by the notch antenna open towards the sector.

4. A wireless local area network (“WLAN”) radio frequency (“RF”) module comprising:

a printed circuit board having RF processing circuitry;

a plurality of multi-band antenna elements connected to the RF processing circuitry in a multiple input, multiple output (“MIMO”) configuration; and

a reflector formed 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, the reflector having a shape that enhances gain/directivity of the antenna elements and isolation between RF modules.

5. The MIMO antenna system of claim 4 where the shape of the reflector is defined by a three-sided wall that forms two corners on opposite sides of a first side positioned perpendicular to a radial axis extending from an opposite end of the RF module, the three-sided wall having an opening opposite the first side.

6. The WLAN RF module of claim 4 where:

each of the plurality of multi-band antenna elements includes at least one notch antenna printed on a printed circuit board where the multi-band antenna element is mounted perpendicular to the RF module with a ‘V’ pattern formed by the notch antenna open towards the sector.

7. The WLAN RF module of claim 4 where the RF module is configurable to communicate in accordance with either the 802.11an or the 802.11bgn standards, the RF module further comprising:

a diplexer connected to each multi-band antenna element and to a high frequency line and a low frequency line;

a front end module connected to either the high frequency line or the low frequency line, the front end module configured:

to connect the high frequency line and the low frequency line to a high transmit line corresponding the high frequency line and a low transmit line corresponding to the low frequency line for radio signals being communicated from the radio to the multi-band antenna element, and to connect the high frequency line and the low frequency line to a high receive line corresponding the high frequency line and a low receive line corresponding to the low frequency line for radio signals being communicated to the radio from the multi-band antenna element.

8. A wireless LAN access device comprising:

a plurality of RF modules radially connected to a central controller to provide a 365° coverage pattern divided into sectors of coverage pattern provided by corresponding RF modules, each RF module including:

a printed circuit board having RF processing circuitry;

a plurality of multi-band antenna elements connected to the RF processing circuitry in a MIMO configuration; and

a reflector formed 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, where the reflector on each RF module comprises a shape that enhances gain/directivity of each of plurality of the multi-band antenna elements and isolation between each RF module.

9. The wireless LAN access device of claim 8 where the shape of the reflector on each RF module is defined by a three-sided wall that forms two corners on opposite sides of a first side positioned perpendicular to a radial axis extending from an opposite end of the RF module, the three-sided wall having an opening opposite the first side.