Patents by Inventor Irana B. Vendik

Irana B. Vendik 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: 7532918
    Abstract: The present invention discloses a U-type superconductive microstrip resonator and a filter corresponding to the same. The U-type superconductive microstrip resonator is an asymmetric U-type configuration formed by folding the superconductive microstrip, its total length is a half of the wavelength corresponding to the center frequency of the filter constituted by them. A filter can be constituted by a number of said U-type superconductive microstrip resonators as required. In this filter, these U-type microstrip resonators are arranged in parallel in a manner that the longer sides direct a same direction, or in a manner that every two adjacent U-type superconductive microstrip resonators are symmetric about an axis. The filter constituted by said U-type superconductive microstrip resonators can not only achieve the same specification as an open-loop superconductive microstrip filter with a same number off sections, but also achieve a smaller size than the open-loop superconductive microstrip filter.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: May 12, 2009
    Assignee: Tsinghua University
    Inventors: Bisong Cao, Meihong Zhu, Xubo Guo, Guyoyong Zhang, Shan He, Irana B. Vendik, Yaroslav Kolmakov