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Marcus Chang

something wrong in far field pattern result when using near field source

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Hi @Marcus Chang,

 

20 lambda is just a rough estimation for RL-GO, it always depends on the model.

Your model seems ideal for PO or LE-PO (only one interaction on the reflector). The solution should be quite accurate. RL-GO would work but it will require much more time because the near field source will be transformed into a spherical modes source first (and same for the Rx antenna). 

Just apply PO (full ray tracing) to the reflector face and you should be good. Also compare with LE-PO (full ray tracing).

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