RF Measurements and Modeling from the JET‐ITER Like Antenna Testing

The RF characteristics of the JET‐ITER Like (JET‐IL) antenna relevant for operation on plasma have been assessed using full wave three Dimensional (3D) electromagnetic CST® Microwave Studio (MWS) simulations, measurements of the full 8‐port antenna strap array S/Z‐matrix, and RF circuit modeling. These efforts are made in parallel with the high voltage testing of the antenna inside a vacuum tank and the hardware implementation of a RF (Radio Frequency) matching feedback control system prior to installation of the antenna on the JET tokamak.