ADS Schematic Substrate Definiton

Hi,

My goal is the design of a dipole antenna for a RFID tag on the ISM band of 868 MHz. For the tuning/optimization I want to create a schematic including the different necessary elements as lines and corners. My problem is that I am not able to get a substrate in any technology (microstrip, stripline,---) that represents my layer structure for the schematic representation:

AIR
Conductive Layer (thickness 2um, cond=1.36e7 S/m)
Dielectric (thickness=125um, er=3.15, ur=1, tand=0.001)
AIR

I know that is possible to define this substrate for the Momentum simulation on Momentum. I have already created the indicated substrate and doing simulations on momentum. But for the schematic representation I do not know how define the same substrate and I am not able to reference the substrate that previously I created for Momentum simulation.

Which technology best suits with my substrate technologies and what are the parameters that I must choose for the substrate?
Is this possible to use the substrate I created for Momentum on a schematic window? Could you indicated me the way to do it?

Thank you very much in advanced.

You need Momentum.

With schematic elements, it doesn't work because an antenna from schematic elements will not radiate. That's a limitation of the underlying circuit models.

Thank you!

So I would try to do the matching network directly in Momentum. Any suggestions for that?