Title :
Efficiency enhancement of a coaxial virtual cathode oscillator
Author :
Jiang, Weihua ; Dickens, James ; Kristiansen, Magne
Author_Institution :
Dept. of Electr. Eng. & Phys., Texas Tech. Univ., Lubbock, TX, USA
fDate :
10/1/1999 12:00:00 AM
Abstract :
The microwave field intensity around the virtual cathode oscillator was enhanced by using a microwave reflector in the output waveguide. The experimental results show that the microwave output power strongly depends on the position and geometry of the microwave reflector. The maximum microwave efficiency obtained was twice as large as that without field enhancement by the microwave reflector
Keywords :
circular waveguides; electron beams; microwave generation; vircators; waveguide components; 30 ns; 40 kA; 500 kV; coaxial virtual cathode oscillator; efficiency enhancement; electron beams; field enhancement; high power microwaves; maximum microwave efficiency; microwave field intensity; microwave output power; microwave reflector; output waveguide; virtual cathode oscillator; Anodes; Cathodes; Coaxial components; Diodes; Electromagnetic waveguides; Electron beams; Geometry; Microwave oscillators; Power generation; Probes;
Journal_Title :
Plasma Science, IEEE Transactions on
