Measurement of channel and propagation properties at 300 GHz

The constantly growing need for unoccupied and unregulated bandwidth will lead to the extension of operation frequencies of ultrabroadband communication systems into the lower Terahertz frequency range. Here we present first channel measurements at 300 GHz for two simple indoor scenarios, a point-to-point link on a desktop and a connection from a desktop to an access point within an office room. For the first scenario measurements are taken depending on distance, antenna types and transmitter/receiver placement. For the second scenario, measurements are obtained to identify line-of-sight and non-line-of-sight paths with up to two reflections and obstruction due to objects in the transmission path. From the channel transfer function, temporal channel characteristics are derived to estimate maximum achievable symbol rates.