Patent ID: 8989683
Filing Date: 2015-03-24
Classification: H03F,H03G

Abstract:
1. An amplifier circuit comprising: a power divider configured to receive a radio frequency (RF) input signal; a first chipset operatively coupled with the power divider and configured to amplify a first sub-band of the input signal; a second chipset operatively coupled with the power divider and configured to amplify a second sub-band of the input signal; and a control circuit to control chipset output, the control circuit comprising a temperature sensing circuit configured to detect an ambient temperature change, generate a sense voltage therefrom, and shift a bias voltage supplied to at least one of the first chipset and/or the second chipset based on combination of the sense voltage and the bias voltage; wherein the input signal is of a given bandwidth, and sub-bands amplified by the amplifier circuit including the first sub-band and the second sub-band, in the aggregate, cover the bandwidth of the input signal.