1.98 THz resonant-tunneling-diode oscillator with reduced conduction loss by thick antenna electrode

We achieved frequency increase in resonant tunneling diode terahertz oscillator by reducing conduction loss in the slot antenna with thick antenna electrode. By a graded increase in electrode thickness for 0.1, 1, 2, and 3 μm, increase in oscillation frequency was obtained. A highest oscillation frequency of 1.98 THz was achieved with an optimum electrode thickness of 2 μm.