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Abstract

Two methods for obtaining the antenna scattering matrix (SM) are presented. The first involves the theoretical computation of the SM and the second involves the experimental measurement of a module SM. Both methods were performed for Tore Supra lower hybrid heating antennae. When compared, the experimental and theoretical SM are in good agreement. The scattering matrix can be used for many purposes. Two applications are studied. The first uses the SM to observe the behaviour of the antenna in front of the plasma. The aim is to see if breakdowns occur under vacuum due to the multipactor effect. The second entails computing the coupling coefficients and the real N(//) spectra.

Additional information

Authors: BIBET PH ET AL., CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: Report: EUR-CEA-FC-1390 EN (1990) 100 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
Record Number: 199011272 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en