Effects of Multiple Internal Reflections on the Small-Signal Gain and Phase of a TWT

被引：16

作者：

Chernin, David ^{[1
]}

Rittersdorf, Ian ^{[2
]}

Lau, Y. Y. ^{[2
]}

Antonsen, Thomas M., Jr. ^{[1
,4
]}

Levush, Baruch ^{[3
]}

机构：

[1] Sci Applicat Int Corp, Mclean, VA 22102 USA

[2] Univ Michigan, Ann Arbor, MI 48108 USA

[3] USN, Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA

[4] Univ Maryland, College Pk, MD 20742 USA

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2012年 / 59卷 / 05期

关键词：

Gain variation; phase variation; tolerance analysis; traveling wave tube;

D O I：

10.1109/TED.2012.2186141

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 (TWT) 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 the gain and output phase first reported in the work of Pengvanich et al. In another example, we report on a study of the effects of many small pitch errors on gain ripple in a 220-GHz folded waveguide TWT.

引用

页码：1542 / 1550

页数：9

共 4 条

[1] Stability of traveling-wave amplifiers with reflections
Antonsen, TM
Safier, P
Chernin, DP
Levush, B
[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 2002, 30 (03) : 1089 - 1107
[2] Effect of random circuit fabrication errors on small-signal gain and phase in traveling-wave tubes
Pengvanich, Phongphaeth
Chernin, David
Lau, Y. Y.
Luginsland, John W.
Gilgenbach, Ronald M.
[J]. IEEE TRANSACTIONS ON ELECTRON DEVICES, 2008, 55 (03) : 916 - 924
[3] Pierce J.R., 1950, TRAVELING WAVE TUBES
[4] Press W.H., 1992, Numerical Recipes. The Art of Scientific Computing (Fortran Version), P82

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