Patents Assigned to Sino Dragon Inc.
  • Method of tuning a high frequency printed resonance circuit
    Patent number: 6189201
    Abstract: In a method of tuning a high frequency printed resonance circuit having a conductive layer that is printed on a dielectric substrate and that serves as an inductance of the resonance circuit, the conductive layer is ground to mechanically remove a portion thereof from the dielectric substrate via a grinding pin that is rotated about a rotary axis perpendicular to a major printed surface of the dielectric substrate, thereby correcting the inductance of the resonance circuit in order to tune the same.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: February 20, 2001
    Assignee: Sino Dragon Inc.
    Inventors: Czeslaw Trzaskowski, Henryk Krzemieniewski