Microwave generator
Abstract
A microwave generator is provided for generating microwaves substantially from virtual cathode oscillation. Electrons are emitted from a cathode and accelerated to an anode which is spaced apart from the cathode. The anode has an annular slit there through effective to form the virtual cathode. The anode is at least one range thickness relative to electrons reflecting from the virtual cathode. A magnet is provided to produce an optimum magnetic field having the field strength effective to form an annular beam from the emitted electrons in substantial alignment with the annular anode slit. The magnetic field, however, does permit the reflected electrons to axially diverge from the annular beam. The reflected electrons are absorbed by the anode in returning to the real cathode, such that substantially no reflexing electrons occur. The resulting microwaves are produced with a single dominant mode and are substantially monochromatic relative to conventional virtual cathode microwave generators. 6 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 6771059
- Patent Number(s):
- 6032262
- Assignee:
- TIC; EDB-88-179312
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
G - PHYSICS G11 - INFORMATION STORAGE G11B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; MICROWAVE EQUIPMENT; DESIGN; ANODES; BEAM OPTICS; CATHODES; INVENTIONS; NUMERICAL DATA; DATA; ELECTRODES; ELECTRONIC EQUIPMENT; EQUIPMENT; INFORMATION; 440300* - Miscellaneous Instruments- (-1989)
Citation Formats
Kwan, T J.T., and Snell, C M. Microwave generator. United States: N. p., 1987.
Web.
Kwan, T J.T., & Snell, C M. Microwave generator. United States.
Kwan, T J.T., and Snell, C M. Tue .
"Microwave generator". United States.
@article{osti_6771059,
title = {Microwave generator},
author = {Kwan, T J.T. and Snell, C M},
abstractNote = {A microwave generator is provided for generating microwaves substantially from virtual cathode oscillation. Electrons are emitted from a cathode and accelerated to an anode which is spaced apart from the cathode. The anode has an annular slit there through effective to form the virtual cathode. The anode is at least one range thickness relative to electrons reflecting from the virtual cathode. A magnet is provided to produce an optimum magnetic field having the field strength effective to form an annular beam from the emitted electrons in substantial alignment with the annular anode slit. The magnetic field, however, does permit the reflected electrons to axially diverge from the annular beam. The reflected electrons are absorbed by the anode in returning to the real cathode, such that substantially no reflexing electrons occur. The resulting microwaves are produced with a single dominant mode and are substantially monochromatic relative to conventional virtual cathode microwave generators. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 31 00:00:00 EST 1987},
month = {Tue Mar 31 00:00:00 EST 1987}
}