Cut-off mode suppression in a waveguide FEM oscillator

C. C. Wright; R. A. Stuart; Christos Petichakis; A. I. Al-Shamma'a; J. Lucas

doi:10.1016/s0168-9002(02)00318-2

Cut-off mode suppression in a waveguide FEM oscillator

C. C. Wright, R. A. Stuart, Christos Petichakis, A. I. Al-Shamma'a, J. Lucas

University of Liverpool

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A waveguide free electron maser (FEM) oscillator for industrial microwave applications was constructed. An X band waveguide FEM oscillator was constructed to cover the lower part of the frequency band of (8-100 GHz). It was found that by selectively coupling out the near cut-off modes at a higher level than the higher frequency modes, their gain can be depreciated below zero and can be permanently subdued.

Original language	English
Pages (from-to)	235-239
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	483
Issue number	1-2
DOIs	https://doi.org/10.1016/s0168-9002(02)00318-2
Publication status	Published - 1 May 2002
Externally published	Yes

Keywords

Cut-off mode
FEL
Gain
Waveguide

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10.1016/s0168-9002(02)00318-2

Cite this

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title = "Cut-off mode suppression in a waveguide FEM oscillator",

abstract = "A waveguide free electron maser (FEM) oscillator for industrial microwave applications was constructed. An X band waveguide FEM oscillator was constructed to cover the lower part of the frequency band of (8-100 GHz). It was found that by selectively coupling out the near cut-off modes at a higher level than the higher frequency modes, their gain can be depreciated below zero and can be permanently subdued.",

keywords = "Cut-off mode, FEL, Gain, Waveguide",

author = "Wright, \{C. C.\} and Stuart, \{R. A.\} and Christos Petichakis and Al-Shamma'a, \{A. I.\} and J. Lucas",

year = "2002",

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doi = "10.1016/s0168-9002(02)00318-2",

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T1 - Cut-off mode suppression in a waveguide FEM oscillator

AU - Wright, C. C.

AU - Stuart, R. A.

AU - Petichakis, Christos

AU - Al-Shamma'a, A. I.

AU - Lucas, J.

PY - 2002/5/1

Y1 - 2002/5/1

N2 - A waveguide free electron maser (FEM) oscillator for industrial microwave applications was constructed. An X band waveguide FEM oscillator was constructed to cover the lower part of the frequency band of (8-100 GHz). It was found that by selectively coupling out the near cut-off modes at a higher level than the higher frequency modes, their gain can be depreciated below zero and can be permanently subdued.

AB - A waveguide free electron maser (FEM) oscillator for industrial microwave applications was constructed. An X band waveguide FEM oscillator was constructed to cover the lower part of the frequency band of (8-100 GHz). It was found that by selectively coupling out the near cut-off modes at a higher level than the higher frequency modes, their gain can be depreciated below zero and can be permanently subdued.

KW - Cut-off mode

KW - FEL

KW - Gain

KW - Waveguide

U2 - 10.1016/s0168-9002(02)00318-2

DO - 10.1016/s0168-9002(02)00318-2

M3 - Article

SN - 0168-9002

VL - 483

SP - 235

EP - 239

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-2

ER -

Cut-off mode suppression in a waveguide FEM oscillator

Abstract

Keywords

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