Patents by Inventor Jiaxiao Niu

Jiaxiao Niu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230420868
    Abstract: An electronic device may have conductive sidewalls, a conductive turret, and a conductive bridge. The turret may be separated from the sidewalls by a slot. A display may be mounted to the turret and may include conductive display structures and a conductive ring that couples the display to the turret. An antenna in the device may have a radiating element formed from the conductive display structures, the ring, and the turret. The conductive bridge may form a short path across the slot to the sidewalls. The slot may define radiating edges of the radiating element. Integrating the antenna into the device in this way may maximize the bandwidth of the antenna by extending the antenna area to include the entire lateral area of the electronic device. This may also serve to maximize the active area of the display.
    Type: Application
    Filed: May 26, 2023
    Publication date: December 28, 2023
    Inventors: Dimitrios Papantonis, Yuko N Kanagy, Jiaxiao Niu, Mario Martinis, Andrea Ruaro, Jayesh Nath, Mattia Pascolini, Eduardo Jorge Da Costa Bras Lima
  • Publication number: 20230420830
    Abstract: An electronic device may have conductive sidewalls and a rear wall. The rear wall may have a first portion mounted to the sidewalls and a second portion protruding away from the first portion to define a cavity. A sensor board may be mounted within the cavity. A coil structure may be mounted within the cavity and surrounding the sensor board. An antenna may have an antenna ground separated from a patch element by an antenna volume. The patch element may include a first conductive trace on the first portion of the rear wall, a second conductive trace on the sensor board, and a conductive interconnect structure that couples the first conductive trace to the second conductive trace. The coil structure may be disposed outside of the antenna to minimize impact of the coil structure on performance of the antenna.
    Type: Application
    Filed: May 26, 2023
    Publication date: December 28, 2023
    Inventors: Dimitrios Papantonis, Eduardo Jorge Da Costa Bras Lima, Yuko N Kanagy, Jiaxiao Niu, Mario Martinis, Andrea Ruaro, Jayesh Nath, Mattia Pascolini
  • Patent number: 11527824
    Abstract: An electronic device may include a rear housing wall, antenna resonating element, sensor board, and grounding ring. The grounding ring may couple antenna currents from the resonating element onto a ground trace on the sensor board. A switchable inductor may couple the grounding ring to the ground traces. The switchable inductor may be used to tune a frequency response of the antenna in a cellular low band. Additionally or alternatively, an inductor may couple the resonating element to the ground traces or other portions of an antenna ground. This inductor may serve to extend the effective length of the antenna resonating element in the cellular low band to compensate for dielectric loading by the rear housing wall, such as in examples where the rear housing wall is formed from zirconia.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: December 13, 2022
    Assignee: Apple Inc.
    Inventors: Eduardo Jorge Da Costa Bras Lima, Yuko N. Kanagy, Jiaxiao Niu, Andrea Ruaro, Jayesh Nath
  • Publication number: 20210328338
    Abstract: An electronic device may include a rear housing wall, antenna resonating element, sensor board, and grounding ring. The grounding ring may couple antenna currents from the resonating element onto a ground trace on the sensor board. A switchable inductor may couple the grounding ring to the ground traces. The switchable inductor may be used to tune a frequency response of the antenna in a cellular low band. Additionally or alternatively, an inductor may couple the resonating element to the ground traces or other portions of an antenna ground. This inductor may serve to extend the effective length of the antenna resonating element in the cellular low band to compensate for dielectric loading by the rear housing wall, such as in examples where the rear housing wall is formed from zirconia.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Inventors: Eduardo Jorge Da Costa Bras Lima, Yuko N. Kanagy, Jiaxiao Niu, Andrea Ruaro, Jayesh Nath
  • Patent number: 11128032
    Abstract: An electronic device may be provided with a housing, a logic board, and wireless circuitry on the logic board. The wireless circuitry may include first and second antennas formed from conductive traces on a surface of the logic board. The first and second antennas may include resonating element arms at opposing sides of the logic board. The first antenna may have a fundamental mode that radiates in a Bluetooth® communications band at 2.4 GHz. The second antenna may radiate in a first ultra-wideband communications band such as a 6.5 GHz ultra-wideband communications band. If desired, the second antenna may also radiate in a second ultra-wideband communications band such as an 8.0 GHz ultra-wideband communications band. In another suitable arrangement, a harmonic mode of the first antenna may radiate in the second ultra-wideband communications band.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: September 21, 2021
    Assignee: Apple Inc.
    Inventors: Eduardo Jorge Da Costa Bras Lima, Andrea Ruaro, Carlo Di Nallo, Dimitrios Papantonis, Jayesh Nath, Jiaxiao Niu, Johan Avendal, Mattia Pascolini, Max O. Landaeus, Ryan C. Perkins
  • Patent number: 11108139
    Abstract: An electronic device may include a rear housing wall, antenna resonating element, coil, sensor board, and antenna grounding ring structures. The coil may receive wireless charging signals through the grounding ring structures and the rear housing wall. The grounding ring structures may include concentric ring-shaped traces. The ring-shaped traces may be separated by at least one gap. The ring-shaped traces and the gaps may configure the grounding ring structures to short antenna currents at relatively high frequencies from the antenna resonating element to a ground trace on the sensor board while blocking currents at relatively low frequencies. This may allow the ground trace to form part of an antenna without substantially impairing wireless charging efficiency of the coil.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: August 31, 2021
    Assignee: Apple Inc.
    Inventors: Eduardo Jorge Da Costa Bras Lima, Andrea Ruaro, Dimitrios Papantonis, Jayesh Nath, Jiaxiao Niu, Mario Martinis, Mattia Pascolini, Michael R. Parker, Rex T. Ehman
  • Publication number: 20210075094
    Abstract: An electronic device may include a rear housing wall, antenna resonating element, coil, sensor board, and antenna grounding ring structures. The coil may receive wireless charging signals through the grounding ring structures and the rear housing wall. The grounding ring structures may include concentric ring-shaped traces. The ring-shaped traces may be separated by at least one gap. The ring-shaped traces and the gaps may configure the grounding ring structures to short antenna currents at relatively high frequencies from the antenna resonating element to a ground trace on the sensor board while blocking currents at relatively low frequencies. This may allow the ground trace to form part of an antenna without substantially impairing wireless charging efficiency of the coil.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 11, 2021
    Inventors: Eduardo Jorge Da Costa Bras Lima, Andrea Ruaro, Dimitrios Papantonis, Jayesh Nath, Jiaxiao Niu, Mario Martinis, Mattia Pascolini, Michael R. Parker, Rex T. Ehman
  • Publication number: 20210043999
    Abstract: An electronic device may be provided with a housing, a logic board, and wireless circuitry on the logic board. The wireless circuitry may include first and second antennas formed from conductive traces on a surface of the logic board. The first and second antennas may include resonating element arms at opposing sides of the logic board. The first antenna may have a fundamental mode that radiates in a Bluetooth® communications band at 2.4 GHz. The second antenna may radiate in a first ultra-wideband communications band such as a 6.5 GHz ultra-wideband communications band. If desired, the second antenna may also radiate in a second ultra-wideband communications band such as an 8.0 GHz ultra-wideband communications band. In another suitable arrangement, a harmonic mode of the first antenna may radiate in the second ultra-wideband communications band.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 11, 2021
    Inventors: Eduardo Jorge Da Costa Bras Lima, Andrea Ruaro, Carlo Di Nallo, Dimitrios Papantonis, Jayesh Nath, Jiaxiao Niu, Johan Avendal, Mattia Pascolini, Max O. Landaeus, Ryan C. Perkins
  • Patent number: 10868356
    Abstract: An electronic device may include an antenna element, coil, sensor board, and grounding ring structures. The coil may receive wireless charging signals through the grounding ring structures. The grounding ring structures may include concentric ring-shaped traces separated by at least one gap. The ring-shaped traces and gaps may configure the grounding ring structures to short antenna currents at relatively high frequencies from the antenna element to a ground trace on the sensor board while blocking currents at relatively low frequencies. The grounding ring structures may include conductive wings that increase capacitive coupling between the grounding ring structures and the antenna element. The grounding ring structures may be soldered to the antenna element. The antenna element and the grounding ring structures may be formed from traces patterned on the same substrate. The ground trace may form part of an antenna without substantially impairing wireless charging efficiency of the coil.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: December 15, 2020
    Assignee: Apple Inc.
    Inventors: Eduardo Jorge Da Costa Bras Lima, Andrea Ruaro, Dimitrios Papantonis, Jayesh Nath, Jiaxiao Niu, Mario Martinis, Mattia Pascolini, Michael R. Parker, Rex T. Ehman
  • Patent number: 10734714
    Abstract: An electronic device such as a wristwatch may have a housing with metal sidewalls and a display having conductive display structures. The display structures may be separated from the sidewalls by a slot for an antenna that runs around the display module. A conductive interconnect may be coupled between the sidewalls and the display structures. A feed and tuning element may be coupled between the display structures and the sidewalls. A first length of the slot from the interconnect to the tuning element may radiate in a satellite band and a cellular band. A second length of the slot from the interconnect to the feed may radiate in a 2.4 GHz band. Harmonics of the second length may radiate in bands at and above 5.0 GHz. If desired, the tuning element may be omitted, and the antenna may be coupled to separate low band and high band matching circuits.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: August 4, 2020
    Assignee: Apple Inc.
    Inventors: Andrea Ruaro, Mario Martinis, Jiaxiao Niu, Eduardo Jorge Da Costa Bras Lima, Dimitrios Papantonis, Jayesh Nath, Zheyu Wang, Carlo Di Nallo, Mattia Pascolini
  • Publication number: 20190372205
    Abstract: An electronic device such as a wristwatch may have a housing with metal sidewalls and a display having conductive display structures. The display structures may be separated from the sidewalls by a slot for an antenna that runs around the display module. A conductive interconnect may be coupled between the sidewalls and the display structures. A feed and tuning element may be coupled between the display structures and the sidewalls. A first length of the slot from the interconnect to the tuning element may radiate in a satellite band and a cellular band. A second length of the slot from the interconnect to the feed may radiate in a 2.4 GHz band. Harmonics of the second length may radiate in bands at and above 5.0 GHz. If desired, the tuning element may be omitted, and the antenna may be coupled to separate low band and high band matching circuits.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 5, 2019
    Inventors: Andrea Ruaro, Mario Martinis, Jiaxiao Niu, Eduardo Jorge Da Costa Bras Lima, Dimitrios Papantonis, Jayesh Nath, Zheyu Wang, Carlo Di Nallo, Mattia Pascolini
  • Patent number: 10355344
    Abstract: An electronic device such as a wristwatch may be provided with a wireless local area network (WLAN) transceiver, satellite receiver, and cellular transceiver. A first antenna may include a radiating slot between a conductive housing wall and a display module. A second antenna may include conductive structures that radiate through a rear face of the device. The WLAN transceiver and the satellite receiver may be coupled to the first antenna. A switch may be coupled between the cellular transceiver and the first and second antennas. Control circuitry may adjust the switch to route signals between the cellular transceiver and a selected one of the first and second antennas based on wireless performance metric data so that the antenna exhibiting superior wireless performance at cellular telephone frequencies is used for cellular telephone communications regardless of environmental conditions.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 16, 2019
    Assignee: Apple Inc.
    Inventors: Andrea Ruaro, Carlo Di Nallo, Dimitrios Papantonis, Eduardo Jorge Da Costa Bras Lima, Jayesh Nath, Jiaxiao Niu, Mario Martinis, Mattia Pascolini, Zheyu Wang
  • Patent number: 10250289
    Abstract: An electronic device may have a display cover layer mounted to a metal housing. Electrical component layers such as a display layer, touch sensor layer, and near-field communications antenna layer may be mounted under the display cover layer. An antenna feed may have a positive feed terminal coupled to the electrical component layers and a ground feed terminal coupled to the metal housing. The electrical component layers may serve as an antenna resonating element for an antenna. The antenna may cover cellular telephone bands and may receive satellite navigation system signals. A system-in-package device may be mounted to the metal housing. A flexible printed circuit may extend between the electrical component layers and the system-in-package device. A mounting bracket for the system-in-package device may be provided with electrical isolation to enhance antenna performance in bands such as a satellite navigation system band.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: April 2, 2019
    Assignee: Apple Inc.
    Inventors: Yi Jiang, Jiangfeng Wu, Lijun Zhang, Siwen Yong, Jiaxiao Niu, Mattia Pascolini, Jayesh Nath, Carlo Di Nallo, Zheyu Wang, Mario Martinis, Eduardo Jorge Da Costa Bras Lima, Steven P. Cardinali, Rex Tyler Ehman, James G. Horiuchi, Trevor J. Ness, Scott D. Morrison, Siddharth Nangia, Mushtaq A. Sarwar
  • Patent number: 10177463
    Abstract: The present disclosure discloses an antenna system that includes a first antenna for transmitting and receiving data and having an electrical length that is equal to its resonant electrical length; a second antenna for receiving data and having an electrical length that is less than its resonant electrical length. The present disclosure also discloses a corresponding electronic apparatus.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 8, 2019
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventor: Jiaxiao Niu
  • Publication number: 20180069588
    Abstract: An electronic device may have a display cover layer mounted to a metal housing. Electrical component layers such as a display layer, touch sensor layer, and near-field communications antenna layer may be mounted under the display cover layer. An antenna feed may have a positive feed terminal coupled to the electrical component layers and a ground feed terminal coupled to the metal housing. The electrical component layers may serve as an antenna resonating element for an antenna. The antenna may cover cellular telephone bands and may receive satellite navigation system signals. A system-in-package device may be mounted to the metal housing. A flexible printed circuit may extend between the electrical component layers and the system-in-package device. A mounting bracket for the system-in-package device may be provided with electrical isolation to enhance antenna performance in bands such as a satellite navigation system band.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 8, 2018
    Inventors: Yi Jiang, Jiangfeng Wu, Lijun Zhang, Siwen Yong, Jiaxiao Niu, Mattia Pascolini, Jayesh Nath, Carlo Di Nallo, Zheyu Wang, Mario Martinis, Eduardo Jorge Da Costa Bras Lima, Steven P. Cardinali, Rex Tyler Ehman, James G. Horiuchi, Trevor J. Ness, Scott D. Morrison, Siddharth Nangia, Mushtaq A. Sarwar
  • Patent number: 9806417
    Abstract: An antenna system and a mobile terminal are disclosed. The antenna system includes an antenna radiator and an adjustable matching circuit connected between the antenna radiator and a radio frequency interface. The adjustable matching circuit adjusts the resistance between the antenna radiator and the radio frequency interface according to a plurality of frequency bands. The antenna radiator in the embodiments of the present disclosure is a metallic body of strip shape, which has a simple structure and is easy to implement and can be combined with the adjustable matching circuit to implement coverage of a larger range band width.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: October 31, 2017
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventor: Jiaxiao Niu
  • Publication number: 20160190709
    Abstract: The present disclosure discloses an antenna system that includes a first antenna for transmitting and receiving data and having an electrical length that is equal to its resonant electrical length; a second antenna for receiving data and having an electrical length that is less than its resonant electrical length. The present disclosure also discloses a corresponding electronic apparatus.
    Type: Application
    Filed: March 30, 2015
    Publication date: June 30, 2016
    Applicant: LENOVO (BEIJING) CO., LTD.
    Inventor: Jiaxiao Niu
  • Publication number: 20160190682
    Abstract: An antenna system and a mobile terminal are disclosed. The antenna system includes an antenna radiator and an adjustable matching circuit connected between the antenna radiator and a radio frequency interface. The adjustable matching circuit adjusts the resistance between the antenna radiator and the radio frequency interface according to a plurality of frequency bands. The antenna radiator in the embodiments of the present disclosure is a metallic body of strip shape, which has a simple structure and is easy to implement and can be combined with the adjustable matching circuit to implement coverage of a larger range band width.
    Type: Application
    Filed: March 30, 2015
    Publication date: June 30, 2016
    Applicant: Lenovo (Beijing) Co., Ltd.
    Inventor: Jiaxiao Niu