US 11,700,026 B2
Feedforward power amplifier for broadband operation
David Richard Pehlke, Westlake Village, CA (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Nov. 16, 2021, as Appl. No. 17/455,095.
Claims priority of provisional application 63/199,607, filed on Jan. 12, 2021.
Prior Publication US 2022/0224373 A1, Jul. 14, 2022
Int. Cl. H04B 1/40 (2015.01); H04B 1/04 (2006.01); H03F 3/24 (2006.01)
CPC H04B 1/40 (2013.01) [H03F 3/245 (2013.01); H04B 1/0458 (2013.01); H03F 2200/451 (2013.01); H04B 2001/0441 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A broadband feedforward power amplifier comprising:
a power amplifier electrically connected between a radio frequency input and a radio frequency output; and
a feedforward compensation circuit including a first amplifier electrically connected in parallel with the power amplifier, a load impedance, and a second amplifier electrically connected between the radio frequency input and the load impedance, the feedforward compensation circuit configured to generate a compensation signal based on sensing an output of the first amplifier and an output of the second amplifier, and to provide the compensation signal to the radio frequency output.