Tests and matching analysis of a load resilient ICRH antenna on TEXTOR

Due to rearrangement of the diagnostic positions resulting from the dynamic ergodic divertor installation on TEXTOR, a new antenna pair has been recently installed. This antenna has been designed to test the load resilient “conjugate-T” (CT) mode of operation. The paper describes the calibration of the system and shows from impedance matrix measurements that the load resilience can be maintained in presence of the mutual coupling between the pair. The practical tuning procedure to obtain the load resilience of the system is also described.