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:
Dec. 13, 2011
Filed:
May. 31, 2006
Applicants:
Giorgio Bertin, Turin, IT;
Marco Braglia, Turin, IT;
Bruno Piovano, Turin, IT;
Inventors:
Assignees:
Telecom Italia S.p.A., Milan, IT;
Pirelli & C. S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tunable delay line for radiofrequency applications includes a waveguide and a dielectric perturbing member that is displaceable relative to the waveguide for varying the delay imparted by the line. The waveguide is a ridge waveguide and the perturbing member is arranged parallel to a longitudinal end surface of the ridge and is movable in the ridge plane, toward and away from the ridge end surface, or in a direction transversal to the ridge.