Controlled Microwave Autogenerator on a Complementary Pair of Mosfet Transistors

A microwave oscillator is proposed, implemented according to the Colpitts scheme on a complementary pair of MOS transistors with 0.35 µm technology. This design uses a source with a reduced supply voltage (3 V) and a minimum number of components used. Generation frequency control, providing a fixed value of the converted frequency at the mixer output, which is achieved by including a varactor in the tank. Variation of the capacitance of the varactor under the action of a control voltage from the output of the digital path of the receiver of the radio engineering system allows you to change the frequency of the oscillator controlled by the voltage (VCO) in the operating frequency band of the receiver's input signal.