Filter for a magnetron power supply lead
US9019044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/587
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductive filter for a magnetron power supply lead comprises an electrically insulating tube; a power lead located partially within the electrically insulating tube, and coaxial therewith, for supplying power from a magnetron power supply to a magnetron, a first core of a first magnetic material and a second core of a second magnetic material coaxially located on the electrically insulating tube; an insulating disc of same external diameter as the first core and the second core and coaxially located on the electrically insulating tube between the first core and the second core. The inductive filter is arranged to filter noise of a first frequency band and noise of a second, different, frequency band different from being transmitted along the power lead and to absorb a predetermined transient voltage from being transmitted along the power lead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.