Patents by Inventor Bor-Tsong Chen

Bor-Tsong Chen 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).

  • Reflecting board with variable slot size for a microstrip reflectarray antenna
    Patent number: 7259721
    Abstract: The present invention relates to a reflecting board for a microstrip reflectarray antenna and, more particularly, to a reflecting board with variable slot size that can improve the design flexibilities of the reflecting board and reduce the sensitivity to the manufacturing tolerances of the microstrip reflectarray antenna. The reflecting board comprises a bottom substrate having a first lower surface, and a top substrate. Plural first microstrip antenna patches, and plural second microstrip antenna patches with rectangular slots are disposed on the upper surface and the second lower surface of the top substrate, respectively. The area of the second microstrip antenna patches is larger than that of the first microstrip antenna patches. Besides, the ratio of the maximum border-length of the rectangular slot to the maximum border-length of the corresponding second microstrip antenna patch is identical for each second microstrip antenna on the second lower surface of the top substrate.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: August 21, 2007
    Assignee: Tatung Company
    Inventors: The-Nan Chang, Bor-Tsong Chen
  • Reflecting board with variable slot size for a microstrip reflectarray antenna
    Publication number: 20070103368
    Abstract: The present invention relates to a reflecting board for a microstrip reflectarray antenna and, more particularly, to a reflecting board with variable slot size that can improve the design flexibilities of the reflecting board and reduce the sensitivity to the manufacturing tolerances of the microstrip reflectarray antenna. The reflecting board comprises a bottom substrate having a first lower surface, and a top substrate. Plural first microstrip antenna patches, and plural second microstrip antenna patches with rectangular slots are disposed on the upper surface and the second lower surface of the top substrate, respectively. The area of the second microstrip antenna patches is larger than that of the first microstrip antenna patches. Besides, the ratio of the maximum border-length of the rectangular slot to the maximum border-length of the corresponding second microstrip antenna patch is identical for each second microstrip antenna on the second lower surface of the top substrate.
    Type: Application
    Filed: February 28, 2006
    Publication date: May 10, 2007
    Applicant: Tatung Company
    Inventors: The-Nan Chang, Bor-Tsong Chen