just replace the conductivity and other properties too of graphene in the material section. we can achieve the same results but more s11 magnitude at the nearly tuning frequency and narrower bandwidth. increased gain and radiation efficiency...
I got different results. What should be the chemical potential so that S11 doesn't vary if anybody has an idea? I think it is also dependent on the chemical potential. I have tried at 0.1,0.2 and 0.5 ev but results are not same
First and foremost thing is to calculate the conductivity of the sheet. This could be calculated based on the thickness of the sheet and resistance. You can use 4 probe method to calculate the sheet resistance. Once you have the conductivity, assign the same to the box you will use as graphene. Use the attached document to calculate the conductivity. Hope it helps.