Double-Directional Angle-Resolved Wideband Channel Measurements and Path Loss Characterization in Corridor at 300 GHz

In this paper, a comprehensive double-directional channel measurement across 40 receiver (Rx) positions in a corridor using an in-house developed 300 GHz channel sounder is reported. During measurement, two types of antennae - horn and probe with different gain and half power beamwidth (HPBW) are used to investigate the impact of mentioned antenna parameters on signal propagation at 300 GHz. The measurement data is subsequently processed to generate the corresponding angular and delay power spectra for both setups. It is observed that irrespective of the antenna type at the Rx almost a similar number of specular paths can be identified for all the Rx positions. Finally, path loss model parameters are evaluated for both omnidirectional path loss (PL) and line of sight (LoS) PL by fitting the data with two popular existing channel models. It is observed that irrespective of the model the path loss exponent (PLE) is always less when the more directional horn antenna is used while the shadowing effect is lower when a wider HPBW probe antenna is used at the Rx.