Patents by Inventor Jian Quan Lin

Jian Quan Lin 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).

  • Broadband tunable antenna and transceiver systems
    Patent number: 7129907
    Abstract: The present invention is directed to multi-element antennas that include, for each adjacent pair of antenna elements, at least one switch arranged to selectively connect that pair to thereby selectively alter an antenna dimension. Accordingly, a multi-element antenna can be configured to enhance its gain at different operational frequencies while a corresponding impedance matching network can enhance the impedance match (i.e., reduce reflected signal energy) between the antenna and a corresponding system (e.g., a transceiver system). The antenna and system can thus be effectively tuned across a wide operational band. The antenna and impedance matching network are configured with switch command signals and match command signals that are provided in response to each of a plurality of frequency codes.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: October 31, 2006
    Assignee: Sensor Systems, Inc.
    Inventors: Zhen Biao Lin, Jian Quan Lin, Seymour Robin