Resonant coaxial cavities for a grid vacuum tube
US4571525A · kind A · utility
2Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1983 |
| Grant date | Feb 18, 1986 |
| Priority date | — |
| Expiry date | Dec 16, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J19/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The means providing capacitive decoupling between the inside cylinder and a grid electrode are disposed at about one fourth of the wavelength of the highest operating frequency from the tube end of the inside cylinder. This is a current node, and dielectric losses at the highest frequency are thus greatly reduced. The match is less good at lower frequencies, but the corresponding dielectric losses are much less at lower frequencies. The first piston provides capacitive coupling between the first and second cavities whereby the entire outside cylinder may be maintained at ground potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.