Starting Energy and Current for a Large Diameter Finite Length Backward Wave Oscillator Operated at the Fundamental Mode

K. Minami; K. Ogura; Y. Aiba; M. R. Amin; X. D. Zheng; T. Watanabe; Y. Carmel; W. W. Destler; V. L. Granatstein

doi:10.1109/27.376576

Starting Energy and Current for a Large Diameter Finite Length Backward Wave Oscillator Operated at the Fundamental Mode

K. Minami, K. Ogura, Y. Aiba, M. R. Amin, X. D. Zheng, T. Watanabe, Y. Carmel, W. W. Destler, V. L. Granatstein

Research output: Contribution to journal › Comment/debate

17 Scopus citations

Abstract

We study the starting conditions for a large diameter (diameter/wavelength = 4.8) finite length backward wave oscillator designed for 24-GHz operation at the fundamental TM01 mode. This geometry is very promising for high power handling capability. We analyze two separate threshold conditions. First, finite length effects give rise to a threshold in electron beam energy below which oscillations cannot be sustained at any beam current. The second is the more familiar current threshold known as a start current. It is also found that the growth rate for the fundamental mode can be much larger than those of other higher order modes thus leading to coherent operation of large diameter sources free from mode competition.

Original language	English
Pages (from-to)	124-132
Number of pages	9
Journal	IEEE Transactions on Plasma Science
Volume	23
Issue number	2
DOIs	https://doi.org/10.1109/27.376576
State	Published - 1 Jan 1995
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Condensed Matter Physics

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title = "Starting Energy and Current for a Large Diameter Finite Length Backward Wave Oscillator Operated at the Fundamental Mode",

abstract = "We study the starting conditions for a large diameter (diameter/wavelength = 4.8) finite length backward wave oscillator designed for 24-GHz operation at the fundamental TM01 mode. This geometry is very promising for high power handling capability. We analyze two separate threshold conditions. First, finite length effects give rise to a threshold in electron beam energy below which oscillations cannot be sustained at any beam current. The second is the more familiar current threshold known as a start current. It is also found that the growth rate for the fundamental mode can be much larger than those of other higher order modes thus leading to coherent operation of large diameter sources free from mode competition.",

author = "K. Minami and K. Ogura and Y. Aiba and Amin, {M. R.} and Zheng, {X. D.} and T. Watanabe and Y. Carmel and Destler, {W. W.} and Granatstein, {V. L.}",

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T1 - Starting Energy and Current for a Large Diameter Finite Length Backward Wave Oscillator Operated at the Fundamental Mode

AU - Minami, K.

AU - Ogura, K.

AU - Aiba, Y.

AU - Amin, M. R.

AU - Zheng, X. D.

AU - Watanabe, T.

AU - Carmel, Y.

AU - Destler, W. W.

AU - Granatstein, V. L.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - We study the starting conditions for a large diameter (diameter/wavelength = 4.8) finite length backward wave oscillator designed for 24-GHz operation at the fundamental TM01 mode. This geometry is very promising for high power handling capability. We analyze two separate threshold conditions. First, finite length effects give rise to a threshold in electron beam energy below which oscillations cannot be sustained at any beam current. The second is the more familiar current threshold known as a start current. It is also found that the growth rate for the fundamental mode can be much larger than those of other higher order modes thus leading to coherent operation of large diameter sources free from mode competition.

AB - We study the starting conditions for a large diameter (diameter/wavelength = 4.8) finite length backward wave oscillator designed for 24-GHz operation at the fundamental TM01 mode. This geometry is very promising for high power handling capability. We analyze two separate threshold conditions. First, finite length effects give rise to a threshold in electron beam energy below which oscillations cannot be sustained at any beam current. The second is the more familiar current threshold known as a start current. It is also found that the growth rate for the fundamental mode can be much larger than those of other higher order modes thus leading to coherent operation of large diameter sources free from mode competition.

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DO - 10.1109/27.376576

M3 - Comment/debate

AN - SCOPUS:0029293253

SN - 0093-3813

VL - 23

SP - 124

EP - 132

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 2

ER -

Starting Energy and Current for a Large Diameter Finite Length Backward Wave Oscillator Operated at the Fundamental Mode

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