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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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Direct Real-Time Power Measurement of a High-Power Electron Cyclotron Maser by a Simple One-Point Schottky Detector Signal

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Title
Direct Real-Time Power Measurement of a High-Power Electron Cyclotron Maser by a Simple One-Point Schottky Detector Signal
Author
Kim, Sung GugKim, Jung HoKim, DongsungWon, Jong-HyoLee, Woo SangYang, JongwonChoi, EunMi
Keywords
Gaussian beam; gyrotron; calorimeter; power measurement; antenna gain
Issue Date
201509
Publisher
Institute of Electrical and Electronics Engineers
Citation
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, v.5, no.5, pp.779 - 785
Abstract
Measurements of the absolute power of high-power millimeter/THz wave generators have been considered to be highly variable and to occasionally produce faulty results owing to experimental difficulty. In this study, we propose a calibration-free method for real-time power measurement of an electron cyclotron maser system, a so-called gyrotron. We demonstrate the feasibility of the method by using a recently developed W-band gyrotron with a peak power of tens of kilowatts. The technique is based on transmitter antenna power measurement by using the Friis transmission equation with a defined gyrotron antenna gain. The new technique will allow extremely simple and accurate real-time measurement of output power over a wide dynamic range (>50 dB) for continuous wave sources to high-power millimeter/THz wave sources with nanosecond pulse lengths
URI
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DOI
http://dx.doi.org/10.1109/TTHZ.2015.2462027
ISSN
2156-342X
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