Accession Number : ADD004755

Title :   Broadband Millimeter Wave Amplifier.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rubin,David

Report Date : 13 Dec 1977

Pagination or Media Count : 4

Abstract : A millimeter wave amplifier having broadband characteristics in which a Gunn diode or other two terminal negative resistance device having an integral heat sink is center mounted in a reduced height waveguide. The heat sink is attached to a mechanism for selectively adjusting its penetration into the waveguide cavity. The introduction of the heat sink into the waveguide cavity creates a discontinuity to the propagation of energy which causes localized waveguide modes other than the dominant mode to exist. The adjustable position of the heat sink allows the reactance due to the introduction of these modes to be variable, proper adjustment resulting in the cancellation of the parasitic reactances inherent in the packaged negative resistance device. (Author)

Descriptors :   *Patents, *Microwave amplifiers, *Gunn diodes, Broadband, Millimeter waves, Heat sinks, Waveguides, Cavities

Subject Categories : Electrical and Electronic Equipment
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE