High-efficiency, magnetized, virtual-cathode microwave generator

Journal Article · Mon Oct 13 04:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.1895· OSTI ID:5027693

Kwan, T J.T.

Microwave generation by electron beams in virtual-cathode configurations can achieve significant power levels. However, most designs inherently have two competing mechanisms generating microwaves: the oscillating virtual cathode and the reflexing electrons. These mechanisms interfere destructively with each other. This paper reports investigation of a novel idea of using an external axial magnetic field and a thick anode with an appropriate collimating slot to extract the electron beam and to suppress the reflexing electrons. It was found that high-power, narrow-band, monochromatic microwaves could be generated with efficiency of 10% to 20%.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 5027693
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:15; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ANODES
BEAMS
CATHODES
COMPUTERS
DATA
DESIGN
EFFICIENCY
ELECTRODES
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
INFORMATION
LEPTON BEAMS
MAGNETIC FIELDS
MICROWAVE EQUIPMENT
MICROWAVE RADIATION
MONOCHROMATIC RADIATION
NUMERICAL DATA
PARTICLE BEAMS
POWER
RADIATION SOURCES
RADIATIONS
RELATIVISTIC RANGE
SIMULATION
THEORETICAL DATA
USES