Design of two-stage tapered harmonic multiplying gyro-TWT

C. W. Baik; S. G. Jeon; D. H. Kim; A. K. Ganguly; G. S. Park; N. Sato; K. Yokoo

doi:10.1109/PPPS.2001.961309

Design of two-stage tapered harmonic multiplying gyro-TWT

C. W. Baik, S. G. Jeon, D. H. Kim, A. K. Ganguly, G. S. Park, N. Sato, K. Yokoo

RIEC - Computing System Platforms Division

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

Abstract

The two-stage tapered gyro-TWT has shown its stable operation at Ka-band with 20% bandwidth. A Ka-band harmonic multiplying amplifier is being investigated employing an axis-encircling electron gun with moderate beam voltage of 30 kV and current of 1A. A two-stage linearly tapered interaction circuit is chosen using a rectangular waveguide. A nonlinear simulation predicted a saturated gain of 25 dB with peak power of 4 kW without axial velocity spread of electron beam at the third harmonic. The bandwidth of 9% is predicted at the center frequency of 35 GHz. The bandwidth decreases to 3% when the velocity spread of 4% is assumed. A detailed discussion on the design will be presented.

Original language	English
Pages (from-to)	P4C31
Journal	IEEE International Conference on Plasma Science
DOIs	https://doi.org/10.1109/PPPS.2001.961309
Publication status	Published - 2001

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10.1109/PPPS.2001.961309

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abstract = "The two-stage tapered gyro-TWT has shown its stable operation at Ka-band with 20% bandwidth. A Ka-band harmonic multiplying amplifier is being investigated employing an axis-encircling electron gun with moderate beam voltage of 30 kV and current of 1A. A two-stage linearly tapered interaction circuit is chosen using a rectangular waveguide. A nonlinear simulation predicted a saturated gain of 25 dB with peak power of 4 kW without axial velocity spread of electron beam at the third harmonic. The bandwidth of 9% is predicted at the center frequency of 35 GHz. The bandwidth decreases to 3% when the velocity spread of 4% is assumed. A detailed discussion on the design will be presented.",

author = "Baik, {C. W.} and Jeon, {S. G.} and Kim, {D. H.} and Ganguly, {A. K.} and Park, {G. S.} and N. Sato and K. Yokoo",

year = "2001",

doi = "10.1109/PPPS.2001.961309",

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journal = "IEEE International Conference on Plasma Science",

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T1 - Design of two-stage tapered harmonic multiplying gyro-TWT

AU - Baik, C. W.

AU - Jeon, S. G.

AU - Kim, D. H.

AU - Ganguly, A. K.

AU - Park, G. S.

AU - Sato, N.

AU - Yokoo, K.

PY - 2001

Y1 - 2001

N2 - The two-stage tapered gyro-TWT has shown its stable operation at Ka-band with 20% bandwidth. A Ka-band harmonic multiplying amplifier is being investigated employing an axis-encircling electron gun with moderate beam voltage of 30 kV and current of 1A. A two-stage linearly tapered interaction circuit is chosen using a rectangular waveguide. A nonlinear simulation predicted a saturated gain of 25 dB with peak power of 4 kW without axial velocity spread of electron beam at the third harmonic. The bandwidth of 9% is predicted at the center frequency of 35 GHz. The bandwidth decreases to 3% when the velocity spread of 4% is assumed. A detailed discussion on the design will be presented.

AB - The two-stage tapered gyro-TWT has shown its stable operation at Ka-band with 20% bandwidth. A Ka-band harmonic multiplying amplifier is being investigated employing an axis-encircling electron gun with moderate beam voltage of 30 kV and current of 1A. A two-stage linearly tapered interaction circuit is chosen using a rectangular waveguide. A nonlinear simulation predicted a saturated gain of 25 dB with peak power of 4 kW without axial velocity spread of electron beam at the third harmonic. The bandwidth of 9% is predicted at the center frequency of 35 GHz. The bandwidth decreases to 3% when the velocity spread of 4% is assumed. A detailed discussion on the design will be presented.

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JO - IEEE International Conference on Plasma Science

JF - IEEE International Conference on Plasma Science

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Design of two-stage tapered harmonic multiplying gyro-TWT

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