Patent ID: 8773200

Claim:
A voltage supply apparatus, comprising: a voltage supply; and a plurality of power amplifier (PA) decoupling circuits, each PA decoupling circuit connected to the voltage supply and providing a filtered voltage supply to a corresponding one of a plurality power amplifiers, each PA decoupling circuit configured to suppress noise of the provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits; wherein each PA decoupling circuit is operative to resonate at one or more predefined critical frequencies of at least one of the plurality of power amplifiers that do not correspond with the PA decoupling circuit; wherein the one or more selected frequencies include a band of frequencies centered on a duplex frequency of the different one of the plurality of power amplifiers than a power amplifier that correspond with the PA decoupling circuit, where a width of the band of frequencies corresponds to a bandwidth resulting from modulation of the carrier transmitted by the different one of the plurality of power amplifiers.