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 language | English |
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| Title of host publication | 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 |
| DOIs | |
| Publication status | Published - Dec 31 2009 |
| Event | 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 - Busan, Korea, Republic of Duration: Sep 21 2009 → Sep 25 2009 |
Publication series
| Name | 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 |
|---|
Other
| Other | 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 |
|---|---|
| Country | Korea, Republic of |
| City | Busan |
| Period | 9/21/09 → 9/25/09 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Communication
Cite this
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 proceeding › Conference contribution
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TY - GEN
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.
UR - http://www.scopus.com/inward/record.url?scp=72749124916&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=72749124916&partnerID=8YFLogxK
U2 - 10.1109/ICIMW.2009.5324785
DO - 10.1109/ICIMW.2009.5324785
M3 - Conference contribution
SN - 9781424454174
T3 - 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
BT - 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
ER -