A theoretical study of an integrated quantum-well resonant tunneling oscillator initiated by an IMPATT diode

A novel initiation scheme, utilizing the new pulsed IMPATT to generate millimeter-wave oscillations in a series-integrated quantum-well resonant tunneling diode (RTD), is proposed and theoretically investigated for the first time. To facilitate transient analysis, a generalized impedance is defined and adopted in this work. The detailed investigation of a two-RTD oscillator is carried out at 100 GHz. The maximum oscillator output power versus the minimum initial input power required of initiation is about 50%. The duration of only a few RF cycles is needed for such initiation.