US 12,009,850 B2
Reconfigurable amplifier
Janakiram Sankaranarayanan, San Diego, CA (US); Jun Tan, San Diego, CA (US); Lai Kan Leung, Carlsbad, CA (US); Timothy Donald Gathman, San Diego, CA (US); Mehmet Ipek, Dallas, TX (US); and Ojas Choksi, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 12, 2023, as Appl. No. 18/317,011.
Application 18/317,011 is a division of application No. 17/404,948, filed on Aug. 17, 2021, granted, now 11,683,062.
Prior Publication US 2023/0283312 A1, Sep. 7, 2023
Int. Cl. H04B 1/18 (2006.01); H03F 3/19 (2006.01)
CPC H04B 1/18 (2013.01) [H03F 3/19 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
an amplifying circuit, comprising:
a first reconfigurable amplifier configured to selectively operate in a cascode mode or a non-cascode mode, wherein an input of the first reconfigurable amplifier is coupled to a first input of the amplifying circuit, and an output of the first reconfigurable amplifier is coupled to an output of the amplifying circuit; and
a second reconfigurable amplifier configured to selectively operate in the cascode mode or the non-cascode mode, wherein an input of the second reconfigurable amplifier is coupled to a second input of the amplifying circuit, and an output of the second reconfigurable amplifier is coupled to the output of the amplifying circuit; and
a controller coupled to the first reconfigurable amplifier and the second reconfigurable amplifier, wherein the controller is configured to:
in a combining mode, cause the first reconfigurable amplifier to operate in the cascode mode and the second reconfigurable amplifier to operate in the cascode mode; and
in a first multiplexing mode, cause the first reconfigurable amplifier to operate in the non-cascode mode and turn off the second reconfigurable amplifier.