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Yijun Zhou patents

Recent patents with Yijun Zhou listed as an inventor - additional entries may be under other spellings.


Yijun Zhou - Related organizations: Apple Inc. patents, Apple Inc patents

Tunable antenna with slot-based parasitic element

07/21/16 - 20160211570 - Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-F antenna. The antenna may have a resonating element formed from portions of a peripheral conductive electronic device housing member
Inventors: Nanbo Jin, Yuehui Ouyang, Yijun Zhou, Enrique Ayala Vazquez, Anand Lakshmanan, Robert W. Schlub, Mattia Pascolini, Matthew A. Mow

Electronic device with passive antenna retuning circuitry

03/31/16 - 20160093955 - An electronic device may have wireless circuitry with antennas. An antenna may have an inverted-F antenna resonating element, an antenna ground, and other resonating element structures. A tip of the antenna resonating element and the antenna ground may be separated by a peripheral housing gap filled with plastic. The antenna
Inventors: Enrique Ayala Vazquez, Mattia Pascolini, Hongfei Hu, Erdinc Irci, Yuehui Ouyang, Jennifer M. Edwards, Jayesh Nath, Salih Yarga, Yijun Zhou, Hao Xu

Electronic device antenna with interference mitigation circuitry

03/03/16 - 20160064812 - An electronic device may be provided with an antenna. The antenna may have an antenna resonating element and an antenna ground. The antenna resonating element may be formed from peripheral conductive housing structures. An audio jack or other connector may be mounted in an opening in the peripheral conductive housing
Inventors: Liang Han, Ming-ju Tsai, Matthew A. Mow, Yijun Zhou, Mattia Pascolini, Salih Yarga, Enrique Ayala Vazquez, Hongfei Hu, Xu Han, Robert W. Schlub

Electronic device antenna with reduced lossy mode

03/03/16 - 20160064801 - An electronic device may be provided with an antenna. The antenna may have an antenna resonating element and an antenna ground. An adjustable inductor may be coupled between the antenna resonating element and the antenna ground. An antenna feed may have a positive feed terminal coupled to the antenna resonating
Inventors: Liang Han, Matthew A. Mow, Ming-ju Tsai, Yijun Zhou, Hongfei Hu, Salih Yarga, Mattia Pascolini, Yuehui Ouyang, Erdinc Irci, Enrique Ayala Vazquez, Robert W. Schlub

Electronic device with adjustable wireless circuitry

12/24/15 - 20150372656 - An electronic device may be provided with wireless circuitry. Control circuitry may be used to adjust the wireless circuitry. The wireless circuitry may include antennas that are tuned, adjustable impedance matching circuitry, antenna port selection circuitry, and adjustable transceiver circuitry. Wireless circuit adjustments may be made by ascertaining a current
Inventors: Matthew A. Mow, Thomas E. Biedka, Liang Han, Ming-ju Tsai, James G. Judkins, Enrique Ayala Vazquez, Jayesh Nath, Hongfei Hu, Nanbo Jin, Hao Xu, Yijun Zhou, Yuehui Ouyang, Victor Lee, Mattia Pascolini, Ruben Caballero

Multiband antennas formed from bezel bands with gaps

12/10/15 - 20150357703 - Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. An inverted-F antenna may have first and second short circuit legs and a feed leg. The first and second short circuit legs and the feed leg may be connected
Inventors: Joshua G. Nickel, Juan Zavala, Yijun Zhou, Mattia Pascolini, Robert W. Schlub, Ruben Caballero

Electronic device having sensors and antenna monitor for controlling wireless operation

11/26/15 - 20150341073 - An electronic device may be provided with wireless circuitry. Control circuitry may be used to adjust the wireless circuitry. The wireless circuitry may include an antenna that is tuned using tunable components. The control circuitry may gather information on the current operating mode of the. electronic device, sensor data from
Inventors: Enrique Ayala Vazquez, Hongfei Hu, Mattia Pascolini, Yuehui Ouyang, Salih Yarga, Yijun Zhou, Erdinc Lrci, Jayesh Nath, Ming-ju Tsai, Matthew A. Mow, Liang Han, James G. Judkins, Robert W. Schlub

Electronic device antenna carrier coupled to printed circuit and housing structures

10/29/15 - 20150311579 - Electronic device antenna structures may include first and second antennas. A housing may have a periphery that is surrounded by peripheral conductive structures such as a segmented peripheral metal member. A segment of the peripheral metal member may be separated from a ground by an opening. An antenna feed for
Inventors: Erdinc Irci, Hongfei Hu, Mattia Pascolini, Yijun Zhou

Electronic device with multiple antenna feeds and adjustable filter and matching circuitry

11/06/14 - 20140329558 - Electronic devices may include antenna structures. The antenna structures may form an antenna having first and second feeds at different locations. A first transceiver may be coupled to the first feed using a first circuit. A second transceiver may be coupled to the second feed using a second circuit. The
Inventors: Dean F. Darnell, Enrique Ayala Vazquez, Hongfei Hu, Yuehui Ouyang, Mattia Pascolini, Robert W. Schlub, Peter Bevelacqua, Hao Xu, Jayesh Nath, Yijun Zhou, Nanbo Jin, David Pratt, Matthew A. Mow, Ming-ju Tsai, Liang Han, Thomas E. Biedka

Electronic device with hybrid inverted-f slot antenna

09/18/14 - 20140266941 - An electronic device may be provided with a housing. The housing may have a periphery that is surrounded by peripheral conductive structures such as a segmented peripheral metal member. A segment of the peripheral metal member may be separated from a ground by a slot. An antenna feed may have
Inventors: Enrique Ayala Vazquez, Hongfei Hu, Mattia Pascolini, Yuehui Ouyang, Yijun Zhou, Matthew A. Mow, Robert W. Schlub, Erdinc Irci, Salih Yarga, Ming-ju Tsai, Liang Han, Thomas E. Biedka, Nicholas S. Reimnitz

Electronic device having multiport antenna structures with resonating slot

09/18/14 - 20140266938 - Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include an inverted-F antenna resonating element and an antenna ground that form an inverted-F antenna having first and second antenna ports. The antenna structures may include a slot antenna resonating element. The slot antenna resonating element
Inventors: Yuehui Ouyang, Nanbo Jin, Yijun Zhou, Enrique Ayala Vazquez, Anand Lakshmanan, Robert W. Schlub, Mattia Pascolini, Matthew A. Mow

Antenna system having two antennas and three ports

09/18/14 - 20140266923 - Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-F antenna and a monopole antenna sharing a common antenna ground. The antenna structures may have three ports. A first antenna port may be coupled to an inverted-F antenna resonating element at
Inventors: Yijun Zhou, Nanbo Jin, Yuehui Ouyang, Enrique Ayala Vazquez, Anand Lakshmanan, Robert W. Schlub, Mattia Pascolini, Matthew A. Mow

Tunable antenna with slot-based parasitic element

09/18/14 - 20140266922 - Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-F antenna. The antenna may have a resonating element formed from portions of a peripheral conductive electronic device housing member
Inventors: Nanbo Jin, Yuehui Ouyang, Yijun Zhou, Enrique Ayala Vazquez, Anand Lakshmanan, Robert W. Schlub, Mattia Pascolini, Matthew A. Mow

Methods and apparatus for performing coexistence testing for multi-antenna electronic devices

03/27/14 - 20140087668 - Radio frequency test systems for characterizing antenna performance in various radio coexistence scenarios are provided. In one suitable arrangement, a test system may be used to perform passive radio coexistence characterization. During passive radio coexistence characterization, at least one signal generator may be used to feed aggressor signals directly to
Inventors: Matthew A. Mow, Thomas E. Biedka, Ming-ju Tsai, Liang Han, Xu Han, Anand Lakshmanan, Nanbo Jin, Hongfei Hu, Dean F. Darnell, Joshua G. Nickel, Jayesh Nath, Yijun Zhou, Hao Xu, Yuehui Ouyang, Nirali Shah, Mattia Pascolini, Robert W. Schlub, Ruben Caballero

Tunable antenna system with multiple feeds

08/08/13 - 20130203364 - Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form an antenna having first and second feeds at different locations. The transceiver circuit may have a first circuit that handles communications using the
Inventors: Dean F. Darnell, Yuehui Ouyang, Hao Xu, Enrique Ayala Vazquez, Yijun Zhou, Peter Bevelacqua, Joshua G. Nickel, Nanbo Jin, Matthew A. Mow, Robert W. Schlub, Mattia Pascolini, Hongfei Hu

Multiband antennas formed from bezel bands with gaps

10/06/11 - 20110241949 - Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. An inverted-F antenna may have first and second short circuit legs and a feed leg. The first and second short circuit legs and the feed leg may be connected
Inventors: Josh Nickel, Juan Zavala, Yijun Zhou, Mattia Pascolini, Robert W. Schlub, Ruben Caballero


### Yijun Zhou patent invention listings

The bibliographic references displayed about Yijun Zhou's patents are for a recent sample of Yijun Zhou's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Yijun Zhou filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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