公开(公告)号：US10469122B2

公开(公告)日：2019-11-05

申请号：US15872695

申请日：2018-01-16

Applicant: QUALCOMM Incorporated

Inventor： Chirag Dipak Patel ,  Lai Kan Leung ,  Zhang Jin ,  Chinmaya Mishra ,  Ravi Sridhara ,  Youngchang Yoon

IPC: H04B1/44 ,  H04W72/04 ,  H04L5/14 ,  H03F1/48 ,  H03F3/19 ,  H03F1/56 ,  H03F3/24 ,  H03H7/46 ,  H04B1/00 ,  H04B1/04 ,  H04B1/18 ,  H04B1/48 ,  H03F3/195

Abstract: Various aspects described herein relate to low-loss multi-band multiplexing schemes for a wireless communications system, for example, a 5th Generation (5G) New Radio (NR) system. In an aspect, a multiplexer for multi-band wireless communications comprises at least one tuning component configured to transmit or receive at least one signal within a frequency band that is selected from a plurality of frequency bands. The multiplexer further comprises at least one combining component, communicatively coupled with the at least one tuning component, configured to transmit or receive the at least one signal within the selected frequency band. In an aspect, the at least one tuning component is integrated on a chip and the at least one combining component is not integrated on the chip.

公开(公告)号：US12146902B2

公开(公告)日：2024-11-19

申请号：US18306616

申请日：2023-04-25

Applicant: QUALCOMM Incorporated

Inventor： Abdellatif Bellaouar ,  Arul Balasubramaniyan ,  Gurkanwal Singh Sahota ,  Muhammad Hassan ,  Jorge Garcia ,  Bhushan Shanti Asuri ,  Ravi Sridhara ,  Omar Essam El-Aassar ,  Chinmaya Mishra

IPC: G01R21/10 ,  G01R21/133 ,  H03F3/45 ,  H03M1/12

Abstract: In certain aspects, a method is provided for measuring power using a resistive element coupled between a power amplifier and an antenna. The method includes squaring a voltage from a first terminal of the resistive element to obtain a first signal, squaring a voltage from a second terminal of the resistive element to obtain a second signal, and generating a measurement signal based on a difference between the first signal and the second signal. In some implementations, the resistive element is implemented with a power switch.

公开(公告)号：US11916580B2

公开(公告)日：2024-02-27

申请号：US17448543

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

Inventor： Jeremy Goldblatt ,  Chinmaya Mishra

IPC: H04B1/04 ,  G01R27/16 ,  H01P5/18 ,  H03F1/32 ,  H03F3/24

CPC classification number: H04B1/0475 ,  G01R27/16 ,  H01P5/18 ,  H03F1/3241 ,  H03F3/245 ,  H03F2200/451 ,  H04B2001/0425

Abstract: An integrated circuit operable to measure an impedance presented to a transmitter path of the integrated circuit and a method thereof are provided. The integrated circuit includes a directional coupler that has an input port, a through port, a coupled port, and an isolation port. The integrated circuit also includes a power amplifier coupled to the input port of the directional coupler, a power detector configured to measure output levels from the coupled port and the isolation port of the directional coupler, a reference signal generator coupled to the isolation port of the directional coupler, and a vector modulator configured to adjust a phase of a signal generated from the power amplifier.

公开(公告)号：US11609253B2

公开(公告)日：2023-03-21

申请号：US17039827

申请日：2020-09-30

Applicant: QUALCOMM Incorporated

Inventor： Bhushan Shanti Asuri ,  Chinmaya Mishra ,  Omar Essam El-Aassar

IPC: G01R27/02 ,  G01R25/04

Abstract: In certain aspects, an apparatus includes a power detector coupled between a power amplifier and an antenna, and a voltage detector coupled between the power amplifier and the antenna. The apparatus also includes a phase shifter coupled to the power detector, and a load measurement circuit coupled to the power detector, the voltage detector, and the phase shifter.

公开(公告)号：US11495890B2

公开(公告)日：2022-11-08

申请号：US16870644

申请日：2020-05-08

Applicant: Qualcomm Incorporated

Inventor： Chinmaya Mishra ,  Bhushan Shanti Asuri

IPC: H01Q21/00 ,  H01Q1/50 ,  H03F3/24

Abstract: An apparatus is disclosed for controlling a power amplifier that is coupled to an antenna element of an antenna array. In example implementations, an apparatus includes an antenna element of an antenna array and a power amplification system. The power amplification system includes at least one input node, at least one output node coupled to the antenna element, and at least one power amplifier branch coupled between the at least one input node and the at least one output node. The power amplification system also includes at least one feedback node coupled to the at least one output node, at least one control node, and a feedback control loop coupled between the at least one feedback node and the at least one control node.

公开(公告)号：US20210351517A1

公开(公告)日：2021-11-11

申请号：US16870644

申请日：2020-05-08

Applicant: Qualcomm Incorporated

Inventor： Chinmaya Mishra ,  Bhushan Shanti Asuri

IPC: H01Q21/00 ,  H01Q1/50 ,  H03F3/24

Abstract: An apparatus is disclosed for controlling a power amplifier that is coupled to an antenna element of an antenna array. In example implementations, an apparatus includes an antenna element of an antenna array and a power amplification system. The power amplification system includes at least one input node, at least one output node coupled to the antenna element, and at least one power amplifier branch coupled between the at least one input node and the at least one output node. The power amplification system also includes at least one feedback node coupled to the at least one output node, at least one control node, and a feedback control loop coupled between the at least one feedback node and the at least one control node.