HFSS : problem for 13,56 Mhz antenna excitation

Hi everybody !

I'm trying to learn how to use HFSS, so i've read a lot of topics on this forum in order to improve my (newbie) skills :)
I have to simulate a HF antenna, in order to determine it inductance... but i've some problem with the wave port (i think) and i don't know what to do...so i need your help ! I've found some information on airbox, infinite plane, and radiation boundary, so i've tried a lot of configuration ... but i can't get a realistic result...
If someone have an idea :)

Regards..

You could try lumped port, esp for RFID antennas.

can not open the design file

error page opens

"LineAxisRenderAttribute .. : value is not valid"

"I/O error in read"