Single-side-band heterodyne differential-phase reflectometry in QUEST

Hiroshi Idei, K. Dono, Y. Wataya, K. Nagata, S. Kawasaki, H. Zushi, Kazuaki Hanada, K. N. Sato, Kazuo Nakamura, M. Sakamoto, Makoto Hasegawa, Y. Higashizono, Y. Takase, T. Maekawa, O. Mitarai, Y. Kishimoto, H. Nakashima, A. Higashijima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.

Original languageEnglish
Title of host publication34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
DOIs
Publication statusPublished - Dec 31 2009
Event34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 - Busan, Korea, Republic of
Duration: Sep 21 2009Sep 25 2009

Publication series

Name34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009

Other

Other34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
CountryKorea, Republic of
CityBusan
Period9/21/099/25/09

Fingerprint

Tokamak devices
Receiving antennas
Amplitude modulation
Launching
Diffraction
Magnetic fields

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Communication

Cite this

Idei, H., Dono, K., Wataya, Y., Nagata, K., Kawasaki, S., Zushi, H., ... Higashijima, A. (2009). Single-side-band heterodyne differential-phase reflectometry in QUEST. In 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 [5324785] (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009). https://doi.org/10.1109/ICIMW.2009.5324785

Single-side-band heterodyne differential-phase reflectometry in QUEST. / Idei, Hiroshi; Dono, K.; Wataya, Y.; Nagata, K.; Kawasaki, S.; Zushi, H.; Hanada, Kazuaki; Sato, K. N.; Nakamura, Kazuo; Sakamoto, M.; Hasegawa, Makoto; Higashizono, Y.; Takase, Y.; Maekawa, T.; Mitarai, O.; Kishimoto, Y.; Nakashima, H.; Higashijima, A.

34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009. 2009. 5324785 (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Idei, H, Dono, K, Wataya, Y, Nagata, K, Kawasaki, S, Zushi, H, Hanada, K, Sato, KN, Nakamura, K, Sakamoto, M, Hasegawa, M, Higashizono, Y, Takase, Y, Maekawa, T, Mitarai, O, Kishimoto, Y, Nakashima, H & Higashijima, A 2009, Single-side-band heterodyne differential-phase reflectometry in QUEST. in 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009., 5324785, 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009, 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009, Busan, Korea, Republic of, 9/21/09. https://doi.org/10.1109/ICIMW.2009.5324785
Idei H, Dono K, Wataya Y, Nagata K, Kawasaki S, Zushi H et al. Single-side-band heterodyne differential-phase reflectometry in QUEST. In 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009. 2009. 5324785. (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009). https://doi.org/10.1109/ICIMW.2009.5324785
Idei, Hiroshi ; Dono, K. ; Wataya, Y. ; Nagata, K. ; Kawasaki, S. ; Zushi, H. ; Hanada, Kazuaki ; Sato, K. N. ; Nakamura, Kazuo ; Sakamoto, M. ; Hasegawa, Makoto ; Higashizono, Y. ; Takase, Y. ; Maekawa, T. ; Mitarai, O. ; Kishimoto, Y. ; Nakashima, H. ; Higashijima, A. / Single-side-band heterodyne differential-phase reflectometry in QUEST. 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009. 2009. (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009).
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abstract = "In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.",
author = "Hiroshi Idei and K. Dono and Y. Wataya and K. Nagata and S. Kawasaki and H. Zushi and Kazuaki Hanada and Sato, {K. N.} and Kazuo Nakamura and M. Sakamoto and Makoto Hasegawa and Y. Higashizono and Y. Takase and T. Maekawa and O. Mitarai and Y. Kishimoto and H. Nakashima and A. Higashijima",
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T1 - Single-side-band heterodyne differential-phase reflectometry in QUEST

AU - Idei, Hiroshi

AU - Dono, K.

AU - Wataya, Y.

AU - Nagata, K.

AU - Kawasaki, S.

AU - Zushi, H.

AU - Hanada, Kazuaki

AU - Sato, K. N.

AU - Nakamura, Kazuo

AU - Sakamoto, M.

AU - Hasegawa, Makoto

AU - Higashizono, Y.

AU - Takase, Y.

AU - Maekawa, T.

AU - Mitarai, O.

AU - Kishimoto, Y.

AU - Nakashima, H.

AU - Higashijima, A.

PY - 2009/12/31

Y1 - 2009/12/31

N2 - In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.

AB - In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.

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