Slow-wave structure for high-power electron devices

Author

Pchelnikov, Yu.N.

Author_Institution

Div. of Sensors, MTS Syst. Corp., Cary, NC, USA

fYear

1999

fDate

36373

Firstpage

399

Lastpage

402

Abstract

One of the main features of slow-wave structures (SWS), intended for electromagnetic wave amplification or for the acceleration of electron beams, is the presence of a longitudinal electric field, with a relatively uniform distribution in the SWS cross-section. A new type of SWS corresponding to the mentioned requirement is presented in this work. The axially symmetric E-type electromagnetic wave is excited in a tube with a relative permeability μ in the azimuth direction. The excited wave has the same components as the E₀₁ wave in a cylindrical waveguide and propagates along the magnetic tube with deceleration. The analysis has shown, that the field of the E₀₁ wave in a magnetic tube has a structure which is optimum for interaction with an electron beam. The creation in the future of a magnetic material with small electromagnetic losses will allow one to realize the proposed SWS for high-power devices

Keywords

circular waveguides; electric fields; electromagnetic field theory; electromagnetic wave propagation; electron tubes; slow wave structures; E₀₁ wave; EM losses; EM wave amplification; axially symmetric E-type EM wave; cylindrical waveguide; electron beam; high-power electron devices; longitudinal electric field; magnetic tube; relative permeability; slow-wave structure; Acceleration; Azimuth; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Electron beams; Electron devices; Magnetic analysis; Permeability; Waveguide components;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Radiophysics of Ultra-High Frequencies, 1999. International University Conference Proceedings

Conference_Location

St Petersburg

Print_ISBN

5-7422-0083-8

Type

conf

DOI

10.1109/UHF.1999.787971

Filename

787971