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US 2018/0019716 A1Published application
Power amplifier with stabilising network
AssigneeSnapTrack, Inc.
InventorMartin Paul WILSON
Life of this patent
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Abstract
A power amplifier circuit comprising a transistor for receiving a signal to be amplified at an input and for outputting an amplified signal at an output; a modulated power supply connected to the transistor output; and a resistive element connected at the transistor output such that a low impedance is maintained at the transistor output across a range of operational frequencies.
Claims12
A circuit comprising:
- an amplifier having an output configured to receive a modulated supply voltage;
- and
- a control circuit having a first terminal coupled to the output of the amplifier and a second terminal coupled to ground, wherein the control circuit includes a first resistor connected in series with a first capacitor.
A circuit comprising:
- an amplifier;
- an envelope modulated power supply, configured to:
- perform one of high bandwidth modulation or wideband envelope modulation, and
- provide a modulated power supply voltage to the amplifier;
- a radio frequency (RF) matching network connected between an output of the amplifier and an output of the circuit, wherein the RF matching network includes series inductors;
- and
- a resonant circuit connected to a node between the output of the amplifier and an output of the envelope modulated power supply, wherein the resonant circuit includes a first resistor connected in series with a first capacitor.
4 more elements
Dependencies are inferred from the claim text.