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:
Jun. 20, 2000
Filed:
May. 13, 1998
Jung-eui Hoh, Suwon, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A magnetron includes a positive polar section having a positive polar cylinder, a plurality of vanes arranged at equal distance to radially protrude from an inner wall to a predetermined radius of the positive polar cylinder and plural strip rings electrically connecting the alternately-disposed vanes among the plural vanes, and a negative polar section having by a filament having a radius smaller than the predetermined radius for emitting thermoelectron to be installed onto a center line of the positive polar cylinder. Respective vanes provide slanted plane or curved plane to allow the area of a plane facing with an adjacent vane to be wider than that of a planar plane parallel with the cylinder axial direction of the positive polar cylinder within the same height of the vanes, thereby increasing capacitance of a cavity resonator formed by adjacent vanes and inner wall of the positive polar cylinder to cut down materials applied and allow for small-sized fabrication.