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Author

Choi, EunMi
THz Vacuum Electronics and Electrodynamics
Research Interests
  • High power millimeter-wave/THz wave, vacuum electronics, plasma breakdown, electron beams, electromagnetics, microwave/RF engineering

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Near-Field Pattern of Large Aperture Higher Order Mode Generator Using Backpropagated Fields in Free Space

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Title
Near-Field Pattern of Large Aperture Higher Order Mode Generator Using Backpropagated Fields in Free Space
Author
Kim, KwanghoonChoe, Mun SeokLee, WoosangSo, JoonhoChoi, EunMi
Keywords
Backpropagation; gyrotron; higher order modes; mode generator
Issue Date
201404
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON PLASMA SCIENCE, v.42, no.4, pp.937 - 943
Abstract
This paper reports the estimation of the electric field from a large aperture cavity that generates a higher order mode by backpropagation of fields measured in free space. A higher order mode of a TE6,2 mode at 94 GHz is designed and fabricated using a quasi-optical manner for the analysis. The backpropagating field at the aperture is compared with the measured field. The field estimated at the aperture is used to analyze the mode information, such as the amount of mode mixture of two different rotating fields and the phase difference between two modes. This paper provides a quantitative way to analyze the rotating cylindrical modes generated from an oversized cavity.
URI
http://scholarworks.unist.ac.kr/handle/201301/10865
DOI
http://dx.doi.org/10.1109/TPS.2014.2307578
ISSN
0093-3813
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