The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 1994
Filed:
Sep. 23, 1992
Gilbert R Perkins, Palm Bay, FL (US);
Douglas Heckaman, Indialantic, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A miniaturized cylindrical `channeline` delay line comprises a plurality of concentrically stacked cylindrical elements, surfaces of which are configured to form helically contoured `channeline` transmission line. The nested stack includes a first, generally cylindrical conductive spool body element, for example a lightweight and electrically conductive cylinder or spool, having a longitudinal axis and an outer, generally cylindrical surface in which a helical groove is formed. Concentrically surrounding this interior spool are one or more additional, generally cylindrical hollow electrically conductive hollow cylinders of successively increasing diameters. These additional electrically conductive hollow cylinders are sized, so that respective ones of the cylinders may be concentrically stacked about the longitudinal axis of the interior spool. Like the interior spool, each surrounding cylinder has a helical groove formed in its outer cylindrical surface. Snugly surrounding the outermost hollow cylinder is a conductive cylindrical cover for the structure, which has a generally cylindrical bore that is sized so as to accommodate the insertion of the interior spool and the concentrically stacked one or more cylindrical hollow cylinders into its bore. Respective lengths of insulator clad center conductor are wound within respective ones of the helical grooves in the interior spool and the cylinders, so as to be electrically insulated from the electrically conductive surfaces of respective ones of the helical grooves and the bores of adjacent body elements.