Stable operating regime for traveling wave devices
US6014387A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1997 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Aug 20, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0903
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Autophase stability is provided for a traveling wave device (TWD) electron beam for amplifying an RF electromagnetic wave in walls defining a waveguide for said electromagnetic wave. An off-axis electron beam is generated at a selected energy and has an energy noise inherently arising from electron gun. The off-axis electron beam is introduced into the waveguide. The off-axis electron beam is introduced into the waveguide at a second radius. The waveguide structure is designed to obtain a selected detuning of the electron beam. The off-axis electron beam has a velocity and the second radius to place the electron beam at a selected distance from the walls defining the waveguide, wherein changes in a density of the electron beam due to the RF electromagnetic wave are independent of the energy of the electron beam to provide a concomitant stable operating regime relative to the energy noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.