Structure dependence of oscillation characteristics of structure-simplified resonant-tunneling-diode terahertz oscillator

Abstract

Abstract A structure-simplified resonant tunneling diode (RTD) oscillator eliminates metal–insulator–metal capacitors, resulting in a simple and brief fabrication process. However, the structure dependence of oscillation characteristics has not been identified. We revealed the structure dependence and obtained an oscillation frequency of up to ∼1 THz using a short antenna. We found that an increase in radiation conductance using offset-fed structure combined with coplanar stripline antennas is effective for high output power, and achieved up to ∼220 μW of output power at 500 GHz. We also clarified the dependence of the oscillation frequency on the stabilization resistor.