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The Small Signal Analysis of a Centered Dielectric-Rod Loaded, Arbitrarily-Shaped Helical Groove Traveling-Wave-Tube
- Source :
- International Journal of Infrared and Millimeter Waves. 28:1051-1062
- Publication Year :
- 2007
- Publisher :
- Springer Science and Business Media LLC, 2007.
-
Abstract
- Properties of traveling wave-beam interaction in a centered dielectric-rod loaded, arbitrarily-shaped helical groove slow-wave structure (SWS) are investigated for a thin annular electron beam. The “hot” dispersion equation is obtained by means of the self-consistent field theory, and the small signal analysis is carried out including the effects of the dielectric-rod parameters and the groove shapes. The numerical results show that the bandwidth of the helical groove TWT is expanded by loading dielectric-rod, however, the small-signal gain is reduced; and when the groove shape changes from the swallow-tail shape to the triangle shape, the working frequency increases , while the peak gain decreases.
- Subjects :
- Signal processing
Radiation
Materials science
business.industry
Bandwidth (signal processing)
Physics::Optics
Dielectric
Condensed Matter Physics
Traveling-wave tube
law.invention
Optics
law
Dispersion relation
Cathode ray
Classical electromagnetism
sense organs
Electrical and Electronic Engineering
business
Instrumentation
Subjects
Details
- ISSN :
- 15729559 and 01959271
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- International Journal of Infrared and Millimeter Waves
- Accession number :
- edsair.doi...........f0ac218aa61a3d81d1383b92769ef893