Giga-bit wireless communication at 300 GHz using resonant tunneling diode detector

We propose the use of a resonant tunneling diode (RTD) as a detector in terahertz wireless communications systems. Comparing to the conventional Schottky-barrier diode detector, the RTD is expected to provide about 30-dB increase in the sensitivity due to its strong nonlinearity. We have experimentally demonstrated an error-free wireless transmission at a bit rate of 2 Gbit/s using the RTD at 300 GHz.