how to add excitation for helical inductor in HFSS

Hello guys,

I model a inductor in HFSS, but I don't know how to add excitation. Who knows it? Thank you. The following picture is the model.

https://www.edaboard.com/thread278635.html

Do you know how to add excitation on helical coil? The two ends of coil is far from each other.