Channel Measurements and Path loss Modeling for Indoor THz Communication

To explore the eventual deployment of communication systems in Terahertz (THz) band (0.1-10 THz) frequencies, extensive channel measurement campaigns are essential. In this regard, we conducted an indoor line-of-sight (LoS) measurement campaign up to 5.5 m on a THz channel sounding system that covers 140-220GHz. We use a frequency-domain channel sounder that is based on a vector network analyzer (VNA) and frequency extenders for these measurements. Using the log-distance path loss model, we estimate the values of path loss exponent and the fading distribution standard deviations. The power delay profile analysis of our measurements shows that there are negligible multipaths in the LoS channels for the current scenario. Our results provide a platform for future exploration of THz band communication in the 140-220 GHz frequency range.