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Internal error for dual-polarized Vivaldi with FEM modal

Good morning

I recently ran a s-parameter request for a dual-polarized Vivaldi and the simulation abruptly stopped sighting an internal feko error. The .out and .cfx files are attached. The .out file said to notify the FEKO support team. Any assistance will be appreciated.

Eliz

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Mel

This problem was fixed in Feko 2019.2. Please update.

Else disable the MLFMM to use FEM/MoM instead of FEM/MLFMM.

Eliz

Good afternoon Mel

Thank you for the reply. I know I wont understand the very technical details, but from my perspective as a user - what was the problem caused by? Will it only happen for FEM modal port simulations? Were there too many frequencies? Will this happen to a dual-pol with an airbox that is solved with FEM and the edge port with SEP? It would help provide some clarity.

Eliz

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