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. 11, 1991
Filed:
Apr. 18, 1989
Applicant:
Inventor:
Melvin G England, Ashford Common, GB;
Assignee:
Thorn Microwave Devices Limited, Hayes, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 3951 ; 315 3977 ;
Abstract
A coaxial magnetron incorporates a quantity of dielectric material within the coaxial cavity between the resonant cavity and the outer wall of the magnetron. The dielectric material has sufficiently high relative permittivity, and Q factor, and is provided in sufficient quantity that the size of the cavity may be reduced for a given frequency and power output.