公开(公告)号：US10749254B2

公开(公告)日：2020-08-18

申请号：US16544641

申请日：2019-08-19

Applicant: QUALCOMM Incorporated

Inventor： Andrew Arnett ,  Dai Lu

IPC: H04B17/00 ,  H01Q3/26 ,  H04B17/21 ,  H04B17/11 ,  H04B1/40

Abstract: Methods, systems, and devices are described for calibration of an array antenna system. A device may transmit a calibration signal from a first antenna element of an antenna array. The calibration signal may be generated by modulating a first signal having a first frequency with a modulation signal having a second frequency. The device may receive the calibration signal using a second antenna element of the antenna array. The device may analyze a sideband of the received calibration signal, where the sideband may be offset in frequency from the first frequency by the second frequency. The device may calibrate the array antenna system based on or more measured properties of the sideband.

公开(公告)号：US10680725B1

公开(公告)日：2020-06-09

申请号：US16418740

申请日：2019-05-21

Applicant: QUALCOMM Incorporated

Inventor： Dai Lu ,  Robert Douglas ,  Andrew Arnett

IPC: H01Q3/30 ,  H04B17/12 ,  H01Q3/26 ,  H04B17/10

Abstract: In certain aspects, a method for calibration includes setting a phase shift of a first phase shifter to a reference phase shift, wherein the first phase shifter shifts a phase of a first signal transmitted via a first antenna. The method also includes sequentially setting a phase shift of a second phase shifter to each one of a first plurality of phase shifts, wherein the second phase shifter shifts a phase of a second signal transmitted via a second antenna. The method further includes receiving the first and second signals at a receiver via a third antenna, and, for each one of the first plurality of phase shifts, measuring a magnitude of a third signal at the receiver, wherein the third signal includes the received first and second signals. The method further includes determining a calibration phase shift based on one or more of the measured magnitudes.

公开(公告)号：US20200067184A1

公开(公告)日：2020-02-27

申请号：US16544641

申请日：2019-08-19

Applicant: QUALCOMM Incorporated

Inventor： Andrew Arnett ,  Dai Lu

IPC: H01Q3/26 ,  H04B1/40 ,  H04B17/11 ,  H04B17/21

Abstract: Methods, systems, and devices are described for calibration of an array antenna system. A device may transmit a calibration signal from a first antenna element of an antenna array. The calibration signal may be generated by modulating a first signal having a first frequency with a modulation signal having a second frequency. The device may receive the calibration signal using a second antenna element of the antenna array. The device may analyze a sideband of the received calibration signal, where the sideband may be offset in frequency from the first frequency by the second frequency. The device may calibrate the array antenna system based on or more measured properties of the sideband.

公开(公告)号：US20170353046A1

公开(公告)日：2017-12-07

申请号：US15171759

申请日：2016-06-02

Applicant: QUALCOMM Incorporated

Inventor： Jen Chen ,  William Henry Von Navak ,  Timothy Kerssen ,  Kelsey Burrell ,  Charles Edward Wheatley ,  Francesco Carobolante ,  Andrew Arnett ,  Yung-Ho Tsai ,  Xiaoyu Liu

IPC: H02J7/02 ,  H01F38/14 ,  H02J50/12

CPC classification number: H02J7/025 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0027 ,  H02J7/0042 ,  H02J50/12 ,  H02J50/40 ,  H04B5/0037 ,  H04B5/0081

Abstract: Devices and methods for distributing power are disclosed. For example, one device includes multiple assemblable elements, each assemblable element is configured to permit interlocking between one or more of the multiple assemblable elements. The multiple assemblable elements each include a portion of a coil. The portions of the coil are electrically interconnected and configured to provide wireless power to a receiving device.