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:
Nov. 09, 2004
Filed:
Mar. 08, 2001
Applicant:
Inventors:
Assignee:
E2V Technologies (UK) Ltd., Chelmsford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 2/348 ; H01J 2/550 ;
U.S. Cl.
CPC ...
H01J 2/348 ; H01J 2/550 ;
Abstract
A magnetron has an output comprising a coaxial line which transmits energy from a wanted oscillator mode as a first coaxial waveguide mode and energy from an unwanted oscillator mode as a second cylindrical waveguide mode. Energy in the cylindrical waveguide mode is intercepted by slots in the coaxial line and absorbed by material . This enables the modes to be separated. Preferably, the output is taken from the axis of the magnetron and the wanted oscillator mode is the &pgr; mode.