US 12,273,073 B2
Dual drive Doherty power amplifier and systems and methods relating to same
Edgar Garay, Atlanta, GA (US); and Sanghoon Lee, Atlanta, GA (US)
Assigned to Falcomm, Inc., Atlanta, GA (US)
Filed by Falcomm, Inc., Atlanta, GA (US)
Filed on Jan. 2, 2024, as Appl. No. 18/402,458.
Application 18/402,458 is a continuation of application No. 18/184,571, filed on Mar. 15, 2023, granted, now 11,876,489.
Claims priority of provisional application 63/319,930, filed on Mar. 15, 2022.
Prior Publication US 2024/0136980 A1, Apr. 25, 2024
Int. Cl. H03F 1/07 (2006.01); H03F 1/02 (2006.01); H03F 1/56 (2006.01); H03F 3/21 (2006.01)
CPC H03F 1/0288 (2013.01) [H03F 1/565 (2013.01); H03F 3/211 (2013.01); H03F 2200/387 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dual-drive based Doherty amplifier, comprising:
a power splitter;
a first power amplifier coupled to a first output of the power splitter; and
a second power amplifier that is coupled to a second output of the power splitter and that is in parallel with the first power amplifier,
wherein at least one of the first power amplifier or the second power amplifier includes a dual-drive power amplifier core,
the dual-drive power amplifier core includes:
a transistor differential pair; and
a multi-feed coupling network, wherein the multi-feed coupling network is configured to drive the dual-drive power amplifier core out-of-phase between a gate terminal and a source terminal of the transistor differential pair, and allow the source terminal and a drain terminal of the transistor differential pair to swing in-phase.