Accession Number : ADD012908

Title :   Microstrip to Dielectric Waveguide Transition.

Descriptive Note : Patent application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

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

Report Date : 08 Jun 1987

Pagination or Media Count : 22

Abstract : A microstrip-to-dielectric waveguide transition comprises a length of rectangular dielectric waveguide which has one end tapered in such a manner that the height of the waveguide top surface above the waveguide bottom surface decreases linearly from full height to zero height at the tapered end of the length of waveguide. The bottom surface of the waveguide length is mounted on the top surface of the waveguide length is mounted on the top surface of a planar microstrip dielectric substrate having an electrically conductive metallic ground plane on the bottom substrate surface and a length of microstrip conductor on the top substrate surface aligned with the waveguide length and abutting the tapered end of the waveguide length. A second length of microstrip conductor is mounted on the tapered portion and part of the untapered portion of the top surface of the waveguide length and is electrically connected to the first microstrip conductor at the tapered end of the waveguide length. The dielectric constant of the microstrip substrate should be no greater than the dielectric constant of the dielectric waveguide length and preferably should be much less.

Descriptors :   *PATENT APPLICATIONS, *TRANSITIONS, *DIELECTRICS, *STRIP TRANSMISSION LINES, HEIGHT, LENGTH, PLANAR STRUCTURES, RECTANGULAR BODIES, BOTTOM, CONSTANTS, DIELECTRIC PROPERTIES

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE