Patents Assigned to Guilford R. MacPhail
  • Low noise crossed-field amplifier
    Patent number: 4814720
    Abstract: In a forward wave low noise cross-field amplifier a slow wave structure is disposed about a predetermined portion of the cathode. The slow wave structure of the cathode is accurately proportioned and spaced to have a dispersion curve near to the dispersion of the slow wave structure of the anode to permit cross-coupling of the RF input from the slow wave structure of the anode to the slow wave structure of the cathode.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: March 21, 1989
    Assignee: Guilford R. MacPhail
    Inventors: Guilford R. MacPhail, Chris L. Wheeland, Edward M. Doyle