Conceptual design and prototype performance of phased-array antenna for EBWH/CD experiments in QUEST

Hiroshi Idei, Masatsugu Sakaguchi, Kazuya Nagata, Kazuaki Hanada, Hideki Zushi, Kazuo Nakamura, Makoto Hasegawa, Kohnosuke Sato, Mizuki Sakamoto, Shoji Kawasaki, Hisatoshi Nakashima, Aki Higashijima

Research output: Contribution to journalArticle

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Electron Bernstein Wave Heating and Current Drive (EBWH/CD) experiments have been conducted to sustain a spherical tokamak configuration in a steady state in QUEST. In the EBWH/CD experiments on QUEST, the O-X-B mode conversion scenario was selected for plasma current sustainment in rather lowdensity plasmas. A new phased-array antenna system was proposed to launch a pure elliptically-polarized O-mode in the oblique injection. The prototype antenna system was designed and its performance was checked at low power test facilities. Good focusing and steering properties were confirmed in the low power test.

Original languageEnglish
Pages (from-to)511-516+9
JournalIEEJ Transactions on Fundamentals and Materials
Issue number7
Publication statusPublished - Oct 5 2012


All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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