Patents Assigned to K Laboratory Co.
  • Lumped element circulator having a plurality of separated operation bands
    Patent number: 6236285
    Abstract: A lumped element circulator having a plurality of operation bands, has a circulator element with a plurality of signal ports and a grounded terminal, and resonance circuits connected between the signal ports and the grounded terminal, respectively, each of the resonance circuits having a plurality of resonance points. The number of the operation bands is equal to the number of the resonance points of each of the resonance circuits.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: May 22, 2001
    Assignees: K Laboratory Co., TDK Corporation
    Inventors: Yoshihiro Konishi, Taro Miura, Akira Usami, Yoshifumi Misu