US 12,113,491 B2
Active splitting amplifier circuit
Alaaeldien Mohamed Abdelrazek Medra, San Diego, CA (US); Xingyi Hua, San Diego, CA (US); Naushad Dhamani, San Diego, CA (US); and Francesco Gatta, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 17, 2021, as Appl. No. 17/478,746.
Claims priority of provisional application 63/082,176, filed on Sep. 23, 2020.
Prior Publication US 2022/0094310 A1, Mar. 24, 2022
Int. Cl. H03F 3/19 (2006.01); H04B 1/16 (2006.01)
CPC H03F 3/19 (2013.01) [H04B 1/16 (2013.01); H03F 2200/451 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A receiver, comprising:
an amplifier circuit, wherein the amplifier circuit includes:
a first common-source amplifier having an input and an output, the first common-source amplifier comprising:
a first transistor having a source, a gate, and a drain, wherein the gate of the first transistor is coupled to the input of the first common-source amplifier, and the drain of the first transistor is coupled to the output of the first common-source amplifier;
a source-degeneration inductor coupled between the source of the first transistor and a ground; and
a gate inductor coupled between the input of the first common-source amplifier and the gate of the first transistor; and
a first common-gate amplifier having an input and an output, wherein the input of the first common-gate amplifier is coupled to the output of the first common-source amplifier;
a first receive chain coupled to the output of the first common-gate amplifier; and
a second receive chain coupled to the output of the first common-source amplifier.