Magnetron and method for joining magnetron components
US6756735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2003 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetron includes an anode having an anode cylinder and anode vanes; a cathode having a filament; a condenser, a choke coil, and a plurality of leads for providing power to the filament; a plurality of magnets, pole pieces, and a yoke for forming a magnetic circuit; an antenna feeder and an antenna cap for transmitting a generated microwave outside of the magnetron; and a plurality of joints formed of a joining material between a metal component and a ceramic component of the magnetron. The joining material is diffused between the metal component and the ceramic component, to infiltrate into an inner part of the ceramic component directly, thereby joining the metal and ceramic components, and thereby also improving a reliability of a magnetron, facilitating a simple component assembly process and a simple magnetron fabrication process, permitting simplification of the fabrication process and reduction of a fabrication cost, and saving equipment cost as a high temperature furnace can be dispensed with.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.