Microwave generator

Patent · Tue Mar 31 04:00:00 EST 1987

OSTI ID:6771059

Kwan, T J.T.; Snell, C M

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.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• Assignee: TIC; EDB-88-179312
• Patent Number(s): PATENTS-US-A6032262
• OSTI ID: 6771059
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ANODES
BEAM OPTICS
CATHODES
DATA
DESIGN
ELECTRODES
ELECTRONIC EQUIPMENT
EQUIPMENT
INFORMATION
INVENTIONS
MICROWAVE EQUIPMENT
NUMERICAL DATA