how to assign boundary condition for Reactive impedence surface in antenna

Hi,
how to assign boundary condition for Reactive impedence surface in antenna?
i assigned perfect electric conductor for Ground and patch , but i am not getting results.. Help me

Hello gsairajesh,
Which software are you using for simulation ?

I am using HFSS for Simulation

In HFSS you need to create a sheet or select the face of the object which you want to define it as reactive impedance. Then simply right click on the face-assign boundary -Impedance and Specify the value of reactance..

Thanks Sir