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Monolithic planar doped barrier subharmonic mixer

  • US 4,563,773 A
  • Filed: 03/12/1984
  • Issued: 01/07/1986
  • Est. Priority Date: 03/12/1984
  • Status: Expired due to Fees
First Claim
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1. A monolithic signal mixer for millimeter wave frequency applications, comprising:

  • a dielectric transmission line medium including a semi-insulating substrate of a given material located on a conductive ground plane, said dielectric transmission line including first and second transmission line portions extending in opposite directions along said ground plane and an intermediate area of reduced thickness separating said portions;

    a monolithic semiconductor signal mixing device including a substrate of said given material integral with and grown on said intermediate area and spaced from the intermediate area ends of said transmission line, said mixing device including conductive means coupling across said area of reduced thickness to respective said intermediate ends of each of said first and second transmission line portions;

    an input signal source and a local oscillator signal source being respectively coupled to opposite ends of said transmission line; and

    intermediate frequency transmission line means located on said ground plane and being coupled to said mixing device for translating an intermediate frequency signal resulting from the heterodyne action between said input signal and said local oscillator signal.

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