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A fundamental oscillation up to 915 GHz was observed at room temperature in InGaAs/AlAs resonant tunneling diode integrated with planar slot antennas. By reducing the mesa area, parasitic capacitance of resonant tunneling diode was decreased. The output power was small (around a few tens nW) at present because of a small area (ap0.63 mum2) and a low available current density (ap3 mA/mum2) which is...
A fundamental oscillation of up to 831 GHz was observed at room temperature in GaInAs/AlAs resonant tunneling diodes integrated with planar slot antennas. The thickness of the collector spacer layer was optimized (20 nm) and the mesa area (<1 mum2) was reduced in order to reduce the resonant tunneling diode capacitance. Reduction in the negative differential conductance in the small mesa area was...
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