Patent ID: 8395458

Claim:
A tunable power voltage-controlled oscillator (VCO), comprising: a tunable resonator, the tunable resonator configured for generating a resonator output signal; a power amplifier assembly, the power amplifier assembly being connected to the tunable resonator, the power amplifier assembly configured for receiving the resonator output signal and increasing a power level of the resonator output signal to generate an amplifier output signal; and a first directional coupler, the first directional coupler being connected to the power amplifier assembly, the first directional coupler further configured for being connected to an antenna, the first directional coupler configured for receiving the amplifier output signal, routing a first portion of the amplifier output signal to the antenna, and routing a second portion of the amplifier output signal to a second directional coupler, the second directional coupler being connected to the first directional coupler and the tunable resonator, wherein the tunable resonator is configured for receiving a control signal from a transformer, the transformer connecting the resonator of the VCO to a phase-locked loop (PLL), the control signal including a tuning voltage and modulation data stream input, the control signal configured for locking a carrier frequency of the VCO and for providing frequency modulation.