公开(公告)号：US20230049925A1

公开(公告)日：2023-02-16

申请号：US17478431

申请日：2021-09-17

Applicant: QUALCOMM INCORPORATED

Inventor： Yung-Chung LO ,  Hyejeong SONG ,  Bhushan Shanti ASURI ,  Sahar NOZARI

IPC: H03F3/24 ,  H03F1/02 ,  H04B1/40

Abstract: A transceiver interface circuit, comprising a driver amplifier (DA), a load line impedance modulation circuit coupled to the DA; and multiple selectable output ports coupled to the load line impedance modulation circuit, an impedance presented by the load line impedance modulation circuit being adjustable dependent on at least a number of output ports coupled to the load line impedance modulation circuit.

公开(公告)号：US20250096754A1

公开(公告)日：2025-03-20

申请号：US18471088

申请日：2023-09-20

Applicant: QUALCOMM Incorporated

Inventor： Chuan WANG ,  Kai ZHAN ,  Bon-Hyun KU ,  Hyejeong SONG ,  Li LIU ,  Kevin Hsi-Huai WANG ,  Muhammad HASSAN

IPC: H03F3/24 ,  H04B1/40

Abstract: An apparatus for wireless communications includes a power amplifier, a low-noise amplifier, a power detector, and a transformer. The transformer includes a first inductor coupled to an output of the power amplifier, and a second inductor coupled to an antenna, wherein the second inductor is magnetically coupled with the first inductor. The transformer also includes a third inductor coupled to an input of the low-noise amplifier, wherein the third inductor is magnetically coupled with the second inductor. The transformer also includes a coupling inductor coupled to an input of the power detector, wherein the coupling inductor is magnetically coupled with at least one of the first inductor and the second inductor.

公开(公告)号：US20240275343A1

公开(公告)日：2024-08-15

申请号：US18648789

申请日：2024-04-29

Applicant: QUALCOMM INCORPORATED

Inventor： Yung-Chung LO ,  Hyejeong SONG ,  Bhushan Shanti ASURI ,  Sahar NOZARI

IPC: H03F3/24 ,  H03F1/02 ,  H04B1/40

CPC classification number: H03F3/245 ,  H03F1/0211 ,  H04B1/40 ,  H03F2200/294 ,  H03F2200/451

Abstract: A load line impedance modulation circuit includes a magnetic circuit, an adjustable capacitance coupled to an output of the magnetic circuit, and a plurality of adjustable resistances coupled to the output of the magnetic circuit, wherein the plurality of adjustable resistances are configured to select from available output ports, an impedance presented by the load line impedance modulation circuit being adjustable dependent on at least a number of selected output ports.