Patents by Inventor Sheng-Fu You

Sheng-Fu You 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).

  • Multilayer chip-type triplexer
    Patent number: 7397324
    Abstract: A multilayer chip-type triplexer is provided. It uses four-session matching transmission lines to integrate three band-pass filters at different frequency bands for simplifying triplexer design. A band-pass filter may be composed of a two-stage combline band-pass filter. The transmission zero generated by the two-stage combline band-pass filter is to increase the isolation and performance of the triplexer. The triplexer uses low-loss materials to reduce the insertion loss of the circuit Moreover, a multilayer structure is adopted to minimize the size of the triplexer. The triplexer is applicable to multiband radio-frequency modules, and meets the multimodule requirement for wireless communication products.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: July 8, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Wen Tang, Sheng-Fu You
  • Multilayer chip-type triplexer
    Publication number: 20060267707
    Abstract: A multilayer chip-type triplexer is provided. It uses four-session matching transmission lines to integrate three band-pass filters at different frequency bands for simplifying triplexer design. A band-pass filter may be composed of a two-stage combline band-pass filter. The transmission zero generated by the two-stage combline band-pass filter is to increase the isolation and performance of the triplexer. The triplexer uses low-loss materials to reduce the insertion loss of the circuit Moreover, a multilayer structure is adopted to minimize the size of the triplexer. The triplexer is applicable to multiband radio-frequency modules, and meets the multimodule requirement for wireless communication products.
    Type: Application
    Filed: September 15, 2005
    Publication date: November 30, 2006
    Inventors: Ching-Wen Tang, Sheng-Fu You