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The oscillator circuit based on resonant tunneling diodes

The resonant tunneling diode (RTD) has been applied to some kinds of microsensors and actuators. These sensors are based on the RTD with a frequency output. The oscillate circuit based on the RTD is the more importance factor on sensitivities and stability of the sensors. In this paper, two kinds of oscillator circuit are introduced, the principle function of the oscillator circuit is explained. The necessary conditions on operating of the oscillate circuit are advanced. The conditions are testified accurate by the experiments. The experimental results show the conditions affect the sensitivities and stability of the sensors.