Patents by Inventor Lih-Shiang Lin

Lih-Shiang 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).

  • Patent number: 6531943
    Abstract: A balun-transformer, which is composed of a balun transition and an impedance matching circuit. Chemical etching is employed in the manufacturing process that is compatible with the common microwave circuit manufacturing process. Using the odd mode analysis and commercial microwave software to design the balun-transformer. It is more accurate and more efficient than the conventional method to make balun-transformer that it can only be designed by experience and experiments. These balun-transformers can be used in UHF and VHF band.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: March 11, 2003
    Assignee: Chung Shan Institute of Science and Technology
    Inventors: Dow-Chih Niu, Chi-Yang Chang, Lih-Shiang Lin
  • Publication number: 20020153984
    Abstract: A balun-transformer, which is composed of a balun transition and an impedance matching circuit. Chemical etching is employed in the manufacturing process that is compatible with the common microwave circuit manufacturing process. Using the odd mode analysis and commercial microwave software to design the balun-transformer, It is more accurate and more efficient than the conventional method to make balun-transformer that it can only be designed by experience and experiments. These balun-transformers can be used in UHF and VHF band.
    Type: Application
    Filed: April 20, 2001
    Publication date: October 24, 2002
    Inventors: Dow-Chih Niu, Chi-Yang Chang, Lih-Shiang Lin