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. 20, 1986
Filed:
Sep. 25, 1985
Carmine Vittoria, Newton, MA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A slotted line tunable microwave filter of the type having a metallic layer aving slot patterns thereon, and an insulating layer, the filter also including a variable bias D.C. magnetic field source, for imposing a magnetic field on a dielectric junction in the metallic layer, which may be varied to tune the filter resonant frequency. In one embodiment of the invention the slot pattern comprises a first set of slots and a second set of slots. The first set of slots comprises a first slot disposed coincident with a negative x axis and the second set of slots comprises a second slot disposed coincident with a positive x axis.