Accession Number : ADD017571

Title :   Broadband Coplanar Waveguide to Slotline Transition having a Slot Cavity.

Descriptive Note : Patent, Filed 17 Jun 93, patented 20 Jun 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Ho, Thinh Q ; Hart, Stephen M

Report Date : 20 Jun 1995

Pagination or Media Count : 10

Abstract : A broadband coplanar waveguide to slotline transition for transferring radio frequency energy having a wave length, lambda, comprises: (1) a dielectric substrate having a first planar surface; an electrically conductive layer formed on the first planar surface; (2) a coplanar waveguide including: (a) a center conductor defined by a section of the electrically conductive layer bordered by first and second parallel channels formed in the electrically conductive layer so as to expose the dielectric substrate; (b) a first ground plane defined by a section of the electrically conductive layer bordering the first channel; and (c) a second ground plane defined by a section of the electrically conductive layer bordering the second channel; (3) a slot cavity formed in the electrically conductive layer so as to expose an area of the dielectric substrate, the slot cavity coextensive with the first channel and having a periphery such that the length of a line segment intersecting two points of the periphery and a centroid of the area is approximately lambda/4; and (3) a slotline defined by a third channel formed in the electrically conductive layer which is coextensive with the second channel.

Descriptors :   *PATENTS, *WAVEGUIDE SLOTS, *SLOT LINES, LAYERS, DIELECTRICS, SUBSTRATES, CAVITIES, ELECTRICAL CONDUCTIVITY, ELECTROMAGNETIC RADIATION, PLANAR STRUCTURES, BROADBAND, RADIOFREQUENCY, CHANNELS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE