Voltage controlled oscillator

Details Voltage controlled oscillator Voltage controlled oscillator

2011-05-03

2011-05-03

Johnson, Ryan (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular frequency control means

C331S1170FE, C331S17700V, C331S181000

Reexamination Certificate

active

07936224

ABSTRACT:
An embodiment of the voltage controlled oscillator is provided. The oscillator comprises a first inductor set, a second inductor set, a second capacitor, a voltage source and a negative resistance element. The inductance of the second inductor set is k times the inductance of the first inductor set. The voltage source applies an ac voltage to the second inductor set. The negative resistance element is coupled to the second inductor set to provide a negative resistance to resonate the second capacitor at the second inductor set.

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Gagliolo, et al.; “Phase Noise Performances of a Cross-Coupled CMOS VCO with Resistor Tail Biasing”; Sep. 2005; IEEE 18th Symposium on Integrated Circuits and Systems Design; pp. 149-153.

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