Sub-THz photonic-transmitters based on GaAs/AlGaAs Uni-traveling Carrier Photodiode and micromachined circular disk monopole antenna for ultra-wideband communication

By incorporating GaAs/AlGaAs based uni-traveling-carrier photodiodes with broadband micromachined monopole antennas, the demonstrated photonic-transmitter can radiate strong sub-THz pulses (20mW peak-power) with a wide bandwidth (100~250GHz), which was measured by another photonic-receiver for ultra-wideband communication.