X-band tunable relativistic BWO with linearly polarized Gaussian radiation

Author

Elfrgani, Ahmed ; Prasad, Sarita ; Fuks, Mikhail ; Schamiloglu, Edl

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM, USA

fYear

2012

Firstpage

1

Lastpage

5

Abstract

To provide high power Gaussian radiation that is attractive for many applications an X-band 460 kV relativistic BWO is proposed in which a Bragg reflector with one-fold left-and right-spiral corrugations of its wall was applied in waveguide on the “cathode” end of the interaction space. Such a reflector converts the operating TM₀₁-mode of the BWO to the forward TE11-mode with linear polarization that is extracted as a Gaussian microwave beam. Frequency tuning over 6% with radiation power ranging from 100 - 350 MW is achieved (in computer simulations) by varying the guide magnetic field.

Keywords

backward wave oscillators; cathodes; microwave tubes; relativistic electron beam tubes; waveguides; Bragg reflector; TM₀₁-mode; X-band relativistic backward wave oscillator; X-band tunable relativistic BWO; cathode end; forward TE₁₁-mode; guide magnetic field; high power Gaussian radiation; linearly polarized Gaussian radiation; power 100 MW to 350 MW; voltage 460 kV; waveguide; Cathodes; Cyclotrons; Electron beams; Magnetic fields; Microwave oscillators; Plasmas; Spirals;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Launch Technology (EML), 2012 16th International Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4673-0306-4

Type

conf

DOI

10.1109/EML.2012.6324998

Filename

6324998