Electron beam device generating microwave energy via a modulated virtual cathode
US5164634A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Sep 13, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/74
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device for producing microwave energy from an electron beam. The device includes: PA0 an electron gun (1), allowing the production of an electron beam (8) in a so-called injection zone (3); PA0 a microwave modulation circuit (7), allowing the superimposition of an alternating voltage at a given frequency on the voltage of the beam in the injection zone; the amplitude of this voltage is sufficient for ensuring, during one of its alternations, the transition between the passing state and the virtual cathode state, thus causing a modulation of the current carried by the electron beam; PA0 an output microwave circuit (4) functioning at the frequency of the modulation signal and excited by the previous modulated current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.