How to simulate SRR using HFSS

plz, can any one help me to simulate Split Ring Resonator by using HFSS.

I try to resimulate the design in the attached paper, and i use Floquet port for excitation and Master/Slave boundary to repeat the structure, but the result wasn't matched that in the original paper.

i want to know what is the appropriate exitation and boundary for that design.

thanks for ur interest.