The extension of the operation frequency range of the resonant BWOs by use of the multistage gratings

Author

Ponomarenko, S.S. ; Kishko, S.A. ; Khutoryan, E.M. ; Kuleshov, A.N. ; Yefimov, B.P.

Author_Institution

Vacuum Electron. Dept., O. Ya. Usikov Inst. for Radiophys. & Electron., Kharkiv, Ukraine

fYear

2014

fDate

26-28 Aug. 2014

Firstpage

233

Lastpage

236

Abstract

The problem of the operation frequency range extension in resonant BWO´s is discussed. The methods of the multistage grating analysis are presented. The carried out theoretical and experimental investigations show the possibility of the broad band operation with low start currents at the 2^nd pass band of the 3-stage grating. The preliminary design of the slow-wave structure for operation at 220 GHz with 7 % frequency tuning range is carried out.

Keywords

backward wave oscillators; diffraction gratings; millimetre wave oscillators; terahertz waves; 3-stage grating; broad band operation; frequency 220 GHz; multistage grating analysis; operation frequency range extension; resonant BWO; slow-wave structure; start currents; Electron beams; Gratings; Harmonic analysis; Oscillators; Power generation; Resonant frequency; Surface waves; bakward wave oscillator; multistage grating; terahertz radiation; volume-surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Mathematical Methods in Electromagnetic Theory (MMET), 2014 International Conference on

Conference_Location

Dnipropetrovsk

Print_ISBN

978-1-4799-6863-3

Type

conf

DOI

10.1109/MMET.2014.6928706

Filename

6928706