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High-Power Cavity-Type RTD THz Oscillators Integrated with Impedance-Matched Slot Antenna

We proposed and fabricated high-power cavity-type RTD THz oscillators integrated with impedance-matched slot antenna. By changing the load admittance with the slot length, the impedance matching condition can be satisfied. A high-power oscillation of 131 μW was obtained at 730 GHz with a 3.5 μm2 RTD. The experimental results reasonably agreed with theoretical calculation.