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US 2024/0195362 A1Published application
Wideband doherty power amplifier
AssigneeSilicon Laboratories Inc.
InventorAslamali A. Rafi
Life of this patent
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Abstract
In on example, an apparatus includes: a first power amplifier (PA) to receive a first input radio frequency (RF) signal and output a first amplified RF signal; a second PA to receive a second input RF signal and output a second amplified RF signal; and a transformer circuit coupled to an output of the first PA and an output of the second PA. The transformer circuit is to provide, to a load circuit, an RF output signal comprising the first amplified RF signal and the second amplified RF signal.
Claims20
An apparatus comprising:
- a first power amplifier (PA) to receive a first input radio frequency (RF) signal and output a first amplified RF signal;
- a second PA to receive a second input RF signal and output a second amplified RF signal;
- and
- a transformer circuit coupled to an output of the first PA and an output of the second PA, wherein the transformer circuit is to provide, to a load circuit, an RF output signal comprising the first amplified RF signal and the second amplified RF signal.
1 more element
A method comprising:
- amplifying, in a first power amplifier (PA), a first differential radio frequency (RF) signal and outputting a first amplified differential RF signal;
- amplifying, in a second PA, a second differential RF signal and outputting a second amplified differential RF signal;
- transforming, in a first transformer coupled to the first PA, the first amplified differential RF signal to provide a first output RF signal to a load circuit, the first transformer comprising a matched transmission line;
- and
- transforming, in a second transformer coupled to the second PA, the second amplified differential RF signal to provide a second output RF signal to the load circuit.
2 more elements
A transmitter comprising:
- a signal processing path comprising:
- a digital baseband circuit to process data and output digital data;
- a converter to convert the digital data to analog data;
- at least one complex mixer to upconvert the analog data to quadrature radio frequency (RF) signals;
- a first power amplifier (PA) coupled to the at least one complex mixer to receive a first quadrature RF signal and output a first amplified quadrature RF signal;
- a second PA coupled to the at least one complex mixer to receive a second quadrature RF signal and output a second amplified quadrature RF signal;
- and
- a transformer circuit coupled to an output of the first PA and an output of the second PA, wherein the transformer circuit is to provide, to a load circuit, an RF output signal comprising the first amplified quadrature RF signal and the second amplified quadrature RF signal.
5 more elements
Dependencies are inferred from the claim text.