Patents by Inventor Martin L. Catt

Martin L. Catt 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).

  • Method of forming screen printed or mask printed microwave absorbing material on module lids to suppress EMI
    Patent number: 5397854
    Abstract: An absorber for a microwave module and method of fabrication thereof wherein an ink is provided from a mixture of powdered iron and a resin. The ink is then screen printed or mask printed onto the interior surface of the lid of the microwave module in a predetermined pattern to lower the Q of the cavities within the module. The lowered Q suppresses the electromagnetic resonance and thereby minimizes the EMI problems. Furthermore, the absorber material reduces EMI between sections of the module at frequencies where no cavity resonances occur.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: March 14, 1995
    Assignee: Texas Instruments Incorporated
    Inventors: Martin L. Catt, Gray E. Fowler, Donald L. Purinton, Leon Stiborek
  • Screen printed of mask printed microwave absorbing material on module lids to suppress EMI
    Patent number: 5324887
    Abstract: An absorber for a microwave module and method of fabrication thereof wherein an ink is provided from a mixture of powdered iron and a resin. The ink is then screen printed or mask printed onto the interior surface of the lid of the microwave module in a predetermined pattern to lower the Q of the cavities within the module. The lowered Q suppresses the electromagnetic resonance and thereby minimizes the EMI problems. Furthermore, the absorber material reduces EMI between sections of the module at frequencies where no cavity resonances occur.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: June 28, 1994
    Assignee: Texas Instruments Incorporated
    Inventors: Martin L. Catt, Gray E. Fowler, Donald L. Purinton, Leon Stiborek