Switch capacitance and varactor banks applied to voltage controlled oscillator having constant frequency tuning sensitivity

Abstract

A variable capacitance applied to a voltage controlled oscillator includes a switch capacitance bank including a plurality of controllable capacitor paths for selectively connected between a first node and a second node in parallel; and, a switch variactor bank including a plurality of controllable variactor paths for selectively connected between the first node and the second node in parallel; wherein each controllable variactor path provides a tunable capacitance value according to an input voltage.

Dependencies are inferred from the claim text.