High dielectric dummy loads for ITER ICRH antenna laboratory testing: Numerical simulation of one triplet loading by ferroelectric ceramics

S. Champeaux, Ph Gouard, H. Bottollier-Curtet, P. Dumortier, R. Koch, V. Kyrytsya, A. Messiaen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Up to now, classical "water" loads have been used for low power testing of ITER ICRH prototype or mock-up antennas. A fair description of the antenna frequency response is obtained excepted for the phasing (0 π 0 π). High dielectric loads are requested to improve the antenna response in the low frequency band [1]. In view of laboratory testing, dummy loads are also required to have efficient wave spatial attenuation to avoid standing waves and to minimize load volume. In this paper, barium titanate ceramic powders mixed with water are shown to exhibit very attractive electromagnetic properties. Coupling performance of one triplet of the ITER ICRH antenna to such kind of loads is numerically investigated. The radiated wave attenuation into the load is also characterized. In spite of its frequency dispersion, "barium titanate" loads are shown to allow the characterization of the full scale triplet frequency response on a scaled-down mock-up.

Original languageEnglish
Title of host publicationRadio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference
Pages41-44
Number of pages4
DOIs
Publication statusPublished - 2011
Event19th Topical Conference on Radio Frequency Power in Plasmas - Newport, RI, United States
Duration: 1 Jun 20113 Jul 2011

Publication series

NameAIP Conference Proceedings
Volume1406
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference19th Topical Conference on Radio Frequency Power in Plasmas
Country/TerritoryUnited States
CityNewport, RI
Period1/06/113/07/11

Keywords

  • ICRH
  • ITER
  • RF antenna
  • barium titanate ceramics
  • load

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