1. A voltage controlled oscillator, comprising: a varactor element having two varactor input nodes and two varactor output nodes, wherein an input signal on the varactor input nodes alters a capacitance of the varactor element at the varactor output nodes; an inductor element intercoupled with the varactor output nodes; a bias circuit coupled to the varactor element for generating a bias signal at the varactor output nodes; and a tuning circuit providing a bias-dependent control signal at a tuning output, wherein the tuning output is coupled to the varactor input nodes, and wherein the tuning circuit combines a tuning signal with the bias signal to generate the bias-dependent control signal and provides the combined tuning signal to the varactor input nodes.