Complementary Colpitts voltage controlled oscillator with low power and low phase noise

초록

A complementary Colpitts voltage-controlled oscillator having the properties of low power and low phase noise are disclosed. The disclosed complementary Colpitts voltage-controlled oscillator includes: a first circuit composed as a PMOS Colpitts voltage-controlled oscillator having a first PMOS transistor, a first current source, a first capacitor, a second capacitor, and a first inductor but with the first inductor removed; a second circuit composed as an NMOS Colpitts voltage-controlled oscillator having a first NMOS transistor, a second current source, a third capacitor, a fourth capacitor, and a second inductor but with the second inductor removed; and a first transformer and a second transformer arranged between the first circuit and the second circuit.