Effects of multiple internal reflections on the small signal gain and phase of a TWT

Author

Chernin, David ; Lau, Yue Ying ; Rittersdorf, Ian ; Antonsen, Thomas, Jr. ; Levush, Baruch

Author_Institution

Naval Res. Lab., Washington, DC, USA

fYear

2012

fDate

24-26 April 2012

Firstpage

537

Lastpage

538

Abstract

We formulate and solve a set of equations that model the effects of reflections from an arbitrary number of circuit discontinuities in a traveling wave tube operating under small signal conditions. Applying this model to a case in which the discontinuities represent a series of small random pitch variations due to fabrication errors in a helix TWT, we find that reflections may significantly increase the statistical effects on gain and output phase first reported in reference [1].

Keywords

electromagnetic wave reflection; helical waveguides; statistical analysis; travelling wave tubes; circuit discontinuities; fabrication errors; helix TWT; multiple internal reflections; random pitch variations; small signal conditions; small signal gain; statistical effects; traveling wave tube; Electron tubes; Equations; Fabrication; Gain; Integrated circuit modeling; Mathematical model; Reflection; fabrication errors; gain; phase; reflection; traveling wave tube;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4673-0188-6

Electronic_ISBN

978-1-4673-0187-9

Type

conf

DOI

10.1109/IVEC.2012.6262267

Filename

6262267