High power microwave radiation from a vircator device: its spatial power distribution and enhancement of E-field by using a coaxial cavity

Author

Rao, G. Venugopala ; Paithankar, A.S. ; Mittal, K.C. ; Ron, P.H.

Author_Institution

Accel. & Pulse Power Div., Bhabha Atomic Res. Centre, Mumbai, India

fYear

1997

fDate

3-5 Dec 1997

Firstpage

333

Lastpage

336

Abstract

High power microwave (HPM) radiation greater than 100 MW was generated by virtual cathode oscillator (vircator) method by using the intense electron beam available from the indigenously developed pulse power system KALI-1000. The HPM power in the far field was measured by using a horn antenna and diode detector. The near field power distribution was determined by an array of neon lamps. The emission distribution from the output window was determined by using various apertures of anechoic material on the output window. The HPM also induced a glow at a pressure of 50 Torr in a chamber attached to the output window. The HPM was injected into a cavity in which the E-field was enhanced at its gap and causes discharge at the atmospheric pressure

Keywords

electric field measurement; electron beam applications; magnetic field measurement; microwave generation; pulsed power technology; vircators; 100 MW; 50 torr; E-field; KALI-1000 pulse power system; anechoic material aperture; atmospheric pressure; coaxial cavity; diode detector; discharge; electron beam; emission distribution; far field; high power microwave radiation; horn antenna; near field power distribution; neon lamps; output window; pressure; spatial power distribution; spatial power enhancement; vircator device; virtual cathode oscillator; Cathodes; Electron beams; High power microwave generation; Microwave devices; Microwave generation; Microwave oscillators; Microwave theory and techniques; Power generation; Pulse generation; Pulse power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Interference and Compatibility '97. Proceedings of the International Conference on

Conference_Location

Hyderabad

Print_ISBN

81-900652-0-3

Type

conf

DOI

10.1109/ICEMIC.1997.669824

Filename

669824