Magnetron unit with choke structure for reducing higher harmonics in microwave output
US4459563A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1981 |
| Grant date | Jul 10, 1984 |
| Priority date | — |
| Expiry date | Apr 27, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J23/54
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetron of simplified mechanical construction and including choke structures for harmonic suppression. The structure includes an anode cylinder having a plurality of vanes therein and upper and lower open ends; a cathode within said anode cylinder; a cathode stem air-tightly coupled with the second open end of the anode cylinder for supporting the cathode; and an output section. The output section includes an insulated cylinder having a first end and air-tightly coupled with the first open end of the anode cylinder and a second open end; an electrically conductive annular member coaxial with the insulated cylinder; an electrically conductive metal cap coaxial with the annular member; and an output conductor for conducting microwave energy from the anode cylinder to the cap, the cap and output conductor defining a first choke structure for suppressing second harmonic energy and the annular member defining a second choke structure for suppressing a fourth harmonic component of microwave energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.