Spatial Characterization of Indoor Radio Channel in the D-Band at 165 GHz

This paper presents an experimental study of the indoor radio channel characteristics at 165 GHz in the D-band. Using wideband measurements based on sliding correlation technique (swept time delay cross-correlation, STDCC) with a pseudo-random binary sequence (PRBS) of length 2<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">23</sup>, we analyze key parameters such as the power delay profile, delay spread, and fading effects as the receiver moves along a linear path. The results indicate significant multipath propagation, with increasing delay spread corresponding to distance. Additionally, signal quality degradation metrics, including Error Vector Magnitude (EVM) and Modulation Error Ratio (MER) are evaluated. The obtained results are consistent with an indoor scenario dominated by a LOS component, with no significant presence of multipath contributions.