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:
Mar. 27, 1979
Filed:
May. 23, 1977
Michel Baril, Paris, FR;
Jacques Legendre, Paris, FR;
Thomson-CSF, Paris, FR;
Abstract
A microstrip line, formed on a dielectric substrate by a conductor strip and a ground-plane layer or a pair of flanking coplanar layers, is electrically coupled to a slot line on that substrate with the aid of supplemental conductors establishing alternate microwave transmission paths between a terminal portion of the strip and respective slot edges. The supplemental conductors include a pair of diodes which are rendered selectively conductive to unblock one or the other transmission path, thereby enabling a 180.degree. shifting of the phase of oscillations transmitted by the slot line to a load upon energization of the microstrip line by a source of microwaves. The load may be a radiating element of an electronically scanning antenna.