Real-field performance of multiple-beam beam-former with polarization compensation

In the present paper we introduce the architecture of a hybrid digital / analog beam-forming with polarization compensation. To evaluate the performance of this architecture we use double-directional, ultra wideband dual-polarized channel measurements at 70 GHz that have been carried out in a small-office environment scenario at the TU Ilmenau. Different positions of Tx and Rx have been measured using horn antennas. The channel impulse responses (CIR) have been processed to emulate a communication system with analog beam-forming capabilities. A single data stream adopting single beam and multi-beam beam-forming strategies has been tested with the measured data, showing an improvement in performance achieved by adopting such an architecture.