Patent ID: 9490745
Filing Date: 2016-11-08
CPC Classification: H03B

Claim Text:
1. A voltage-controlled oscillator comprising: a tank circuit; a first pair of transistors, wherein each transistor of the first pair of transistors comprises a gate, a drain, and a source, and wherein the drains of the first pair of transistors are coupled to the tank circuit and the gates of the first pair of transistors are cross-coupled with the drains of the first pair of transistors; a second pair of transistors, wherein each transistor of the second pair of transistors comprises a gate, a drain, and a source, and wherein the drains of the second pair of transistors are coupled to the tank circuit and the gates of the second pair of transistors are cross-coupled with the drains of the second pair of transistors; a first resonant filter comprising a first inductor, wherein a first terminal of the first inductor is coupled to the sources of the first pair of transistors, and wherein the first resonant filter does not include a capacitor coupled in parallel to the first inductor; a second resonant filter comprising (i) a second inductor and (ii) a capacitor bank coupled in parallel to the second inductor, a current source having a first terminal coupled to a second terminal of the first inductor.