Dispersion properties and beam excitation of symmetric slow waves in helix traveling wave tubes in the presence of plasma

M. Vafaei, M. Nejati, A. Abdoli-Arani and A. R. Niknam

Journal of Electromagnetic Waves and Applications, 2022, vol. 36, issue 5, 637-654

Abstract: The propagation of the hybrid slow waves in the new helix traveling wave tube, including a dielectric rod, gas plasma layer, and helix sheath is examined. It is assumed that the plasma is strongly magnetized. The dispersion relation of symmetric hybrid slow waves in this waveguide is obtained. It is shown that the frequency increases by increasing the axial wavenumber and the group velocity of slow waves reduces with increasing the dielectric constant. Moreover, by injecting the electron beam in the vacuum area in the waveguide, the symmetric hybrid slow waves are excited and the influence of various parameters on the growth rate of these waves is examined. Furthermore, therequired parameters such as plasma frequency, dielectric constant, and other geometric parameters for waveguide fabrication are expressed. According to this configuration, the allowed region for the operation of this waveguide and its growth rate and other results are obtained.

Date: 2022
References: Add references at CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1080/09205071.2021.1978333 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:taf:tewaxx:v:36:y:2022:i:5:p:637-654

Ordering information: This journal article can be ordered from
http://www.tandfonline.com/pricing/journal/tewa20

DOI: 10.1080/09205071.2021.1978333

Access Statistics for this article

Journal of Electromagnetic Waves and Applications is currently edited by Mohamad Abou El-Nasr and Pankaj Kumar Choudhury

More articles in Journal of Electromagnetic Waves and Applications from Taylor & Francis Journals
Bibliographic data for series maintained by Chris Longhurst ().