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:
Jul. 27, 2010
Filed:
Jul. 17, 2007
Larry R. Barnett, Normandy, TN (US);
Larry R. Barnett, Normandy, TN (US);
Other;
Abstract
A magnet configuration for a power microwave tube with a resonant cavity comprises a permanent magnet () with an axis-aligned through-bore () of sufficient size to contain the resonant cavity. The permanent magnet has an inner chamber () that is centered on the axis () with opposite magnet poles aligned along the axis. The magnet configuration further comprises an electromagnet coil () fitting in the chamber and encircling the axis such that the coil produces a magnetic field that reinforces the magnetic field from the permanent magnet. An optional protrusion () spanning the through-bore narrows an air gap between the poles. The method provides a magnetic field in a power microwave generator by combining a permanent magnet with an electromagnet in accordance with the magnet configuration and energizes the electromagnetic coil, which may be by pulsing the coil current.