Real-field performance of hybrid MISO time reversal multi-beam beam-former at mm-Waves

In the present paper we evaluate the performance of a hybrid digital/analog multi-beam beam-forming architecture with polarization and delay compensation using time reversal (TR). Double-directional, ultra wideband dual-polarized channel measurements at 70 GHz in a conference room have been used to emulate the channel. The use of multiple beams to mitigate human shadowing has been evaluated and the temporal and spatial focusing of time-reversal to reduce inter-user interference.