Accession Number : ADD013616

Title :   Microstrip Resonance Isolator.

Descriptive Note : Patent Application, Filed 1 Mar 88,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Stern, Richard A ; Babbitt, Richard W

Report Date : 01 Mar 1988

Pagination or Media Count : 25

Abstract : A microstrip resonance isolator is provided comprising a dielectric waveguide element which is mounted on the top surface of a length of microstrip transmission line dielectric substrate having an electrically conductive ground plane on the bottom surface of the substrate. THe waveguide element has a rectangular rod-shaped central section and two oppositely-inclined ramp-shaped sections at the ends of the central section. The dielectric constant of the waveguide element is substantially more than the dielectric constant of the microstrip transmission substrate. A microstrip conductor is provided on the top surface of the substrate from one end thereof to the other end thereof and passes over the top surface of the dielectric waveguide element. A thin, rectangular substrate of hexagonal, grain-oriented ferrite material is mounted on one side of the waveguide element between the ramp-shaped end sections.

Descriptors :   *DIELECTRIC PROPERTIES, *DIELECTRICS, *ISOLATION, *STRIP TRANSMISSION LINES, *SUBSTRATES, *WAVEGUIDES, *PATENT APPLICATIONS, BOTTOM, CONSTANTS, ELECTRICAL CONDUCTIVITY, GROUND LEVEL, RECTANGULAR BODIES, RESONANCE, RODS, SURFACES, THINNESS, TRANSMITTANCE

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE