Patents by Inventor Rick A. Crist

Rick A. Crist 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).

  • Patent number: 4965527
    Abstract: A gain-equalized balanced microwave transistor amplifier configuration is disclosed. Two microwave amplifier circuits provide the power amplification. An input power divider divides the input signal into two signal components which are fed to the respective amplifier circuits by two transmission lines. The outputs for the amplifier circuits are fed to an output combiner by two additional transmission lines to provide a combined output signal. The desired gain equalization is provided through the loss of power due to phase error introduced by unequal transmission line lengths connecting the microwave transistor amplifiers to the output power combiner.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: October 23, 1990
    Assignee: Hughes Aircraft Company
    Inventors: Robert T. Clark, Rick A. Crist