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Content Provider | IEEE Xplore Digital Library |
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Author | Young Ho Na Sang Wook Jung Choi, J.J. Kim, R. |
Copyright Year | 2002 |
Description | Author affiliation: Sch. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea (Young Ho Na; Sang Wook Jung; Choi, J.J.) |
Abstract | Summary form only given. Design of a Q-band travelling-wave tube amplifier is presented in this paper. Two types of slow wave circuit with folded-waveguide type and helix type are examined in the traveling-wave-tube amplifier. A 3D particle-in-cell code (MAGIC3D), a 3D electromagnetic code (HFSS) and Pierce theory are used in the amplifier design. A highly reproducible, low cost folded-waveguide traveling-wave-tube amplifier is designed to operate at 40-48 GHz with a peak output radiation power of 200 W. Initial circuit parameters are obtained from the Pierce theory and circuit dispersion relations. A non-linear, large-signal performance of the amplifier is predicted from the 3D particle-in-cell simulation. A simulation model of the two stage serpentine circuit is shown. The non-linear numerical simulations predict an electronic efficiency of 5.6%, corresponding to a saturated radiation power 200 W at 44 GHz where the beam voltage is 21 W and the beam current is 0.17 A. The saturated 3-dB bandwidth is found to be 16% (40.5-47.5 GHz). A design of a Q-band helix traveling-wave-tube amplifier is underway. |
Sponsorship | IEEE Electron Devices Soc |
Starting Page | 100 |
Ending Page | 101 |
File Size | 95332 |
Page Count | 2 |
File Format | |
ISBN | 0780372565 |
DOI | 10.1109/IVELEC.2002.999281 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2002-04-25 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Circuit simulation Design engineering Bandwidth Telecommunications Electron devices Electromagnetic radiation Costs High power amplifiers Dispersion Predictive models |
Content Type | Text |
Resource Type | Article |
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