Exploiting unique polarisation characteristics at 60 GHz for fast beamforming high throughput MIMO WLAN systems

A 2×2 60 GHz MIMO solution combined with polarisation diversity is proposed for high throughput WLAN applications. In addition to a PHY throughput of more than 12 Gbps, this scheme is robust against polarisation mismatch and antenna tilting due to the adoption of circular polarisation. It also offers the possibility to detect LOS/NLOS conditions for antenna adaptation. A fast beamforming ability that exploits the MIMO architecture is presented. Results show that the proposed beam switching procedure outperforms existing prior art schemes in terms of its ability to track a time varying channel.