With Electronic Tube Or Diode In Coupling Circuit Patents (Class 330/164)
  • Patent number: 5404113
    Abstract: A high-efficiency amplifier (10, 18) that may be used in, for example, a radar system to amplify signals received at an exciter (22) before they are applied to an antenna (20). The amplifier includes, among other components, an adaptive matching network (48) that is controlled by a processing system (26) to allow the amplifier to be adaptively matched to the load as the operating frequency of the system undergoes changes. Specifically, the network is adjusted based upon information regarding the ratio R of reflected power over incident power measured at the load the last time the system operated at the same frequency. As a result, the system is able to respond more quickly to frequency changes.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: April 4, 1995
    Assignee: The Boeing Company
    Inventor: John H. Nitardy