Now-a-day life requests increasingly more volumes of data exchange
However, electromagnetic spectrum is a natural resource and with current demand of data rates the potential at microwave carrier frequencies is practically fully exploited. The way forward to increase transmission data rates is to increase the carrier frequency. MM-wave/THz frequency range offers huge bandwidth, which offers great opportunities for high-rate data transmission.
Here is worth to note, that the typical approach for data transmitters (Tx) is data modulation of carrier frequency at low-power level and then amplification of the modulated signal to the required power level. However, currently there is no commercial supplier of high-power amplifiers (HPA) at frequencies >100GHz. Therefore, available options are one of following: