Efficient, monochromatic, high-power microwave generator
Microwave generation by electron beams in virtual cathode configurations can achieve significant power levels. However, most designs inherently have two competing mechanisms generating microwaves; namely the oscillating virtual cathode and the reflexing electrons. These two mechanisms tend to interfere destructively with each other. Specifically, the reflexing electrons subject the electron beam to two-stream instability, causing considerable heating of the electron beam. In addition, the space-charge of the reflexing electrons can cause the diode independence to fluctuate, resulting in oscillations of the electron beam energy. We have investigated a novel idea to remove these undesirable effects and we found that high-power, narrow-band, and monochromatic microwaves could be generated with efficiency of 10 to 20%. 16 refs., 7 figs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5732757
- Report Number(s):
- LA-UR-86-1937; CONF-860665-8; ON: DE86012385
- Country of Publication:
- United States
- Language:
- English
Similar Records
Numerical simulations of the reditron
Virtual cathode microwave devices -- Basics
Related Subjects
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
CATHODES
DATA
ELECTRODES
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ENERGY RANGE
INFORMATION
LEPTON BEAMS
MICROWAVE RADIATION
MONTE CARLO METHOD
NUMERICAL DATA
PARTICLE BEAMS
RADIATIONS
RELATIVISTIC RANGE
SPECTRA
THEORETICAL DATA