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:
Feb. 05, 2008
Filed:
Mar. 31, 2006
Applicant:
Michael Barry Clive Brady, Maldon, GB;
Inventor:
Michael Barry Clive Brady, Maldon, GB;
Assignee:
E2V Technologies (UK) Limited, Chelmsford, Essex, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 25/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a magnetron having a bodydefining an anodedivided into resonant cavitiesby vanesand having a coaxial cathode, r.f. energy produced when a magnetic field is applied parallel to the axis of the anode is launched along a waveguideby an antennain an evacuated region of the magnetron closed by a dielectric window. The latter has sector shaped conducting areas on its surface symmetrically arranged with respect to the antenna, the inductance of which balance the capacitance of the dielectric window, thereby reducing reflections at the window.