Hi expert guys,

I have a issue in ADS schematic design I would appreciate you if you can help me. I have a s2p ( two port scattering parameters exported from HFSS related to series impedance) file.

Now, I have the formula to extract the series impedance based on S parameters. I want to put this impedance file in simple microstrip matching circuit.But, I cannot find a link that can calculate the impedance by the formula and provided S parameters. As you know, there is an option named as " linear equation based" one port Z that I can use as series impedance in ADS, but I cannot put equation inside of it and link the formula to provided S parameters.

Please let me know if you have any solution for it.

I have a issue in ADS schematic design I would appreciate you if you can help me. I have a s2p ( two port scattering parameters exported from HFSS related to series impedance) file.

Now, I have the formula to extract the series impedance based on S parameters. I want to put this impedance file in simple microstrip matching circuit.But, I cannot find a link that can calculate the impedance by the formula and provided S parameters. As you know, there is an option named as " linear equation based" one port Z that I can use as series impedance in ADS, but I cannot put equation inside of it and link the formula to provided S parameters.

Please let me know if you have any solution for it.

Also, if I want to extract impedance and use it as a circuit element in circuit modeling, I need impedance model. Do you have any idea about it?

Your idea works well as I want S parameter simulation, but I need also circuit modeling with simple circuit simulation.

> if I want to extract impedance and use it as a circuit element in circuit modeling, I need impedance model. Do you have any idea about it?

Different ways you can do it, depending on the actual data/component.

You can look at Z11 or Y11 and convert is to one port impedance (R+jwL, R+1/jwC, R||jwL, R||1/jwC). This might work well, if the device/circuit is simple.

You can create you own model for more complex models, based on known physical structure, and calculate/fit the parameters like I have shown here for RFIC inductors: http://muehlhaus.com/products/equivalent-circuit-model-fit-for-rfic-inductors

You can also try the ADS built-in extraction for narrowband or wideband SPICE models. In the ADS help, it is documented here:

Home > Simulation > Model Creation > Narrowband SPICE Model Generator