The crossover schematic model accuracy might not be super accurate for such very different widths, but should be acceptable. Most likely this is a mistake in your EM modelling. Can you upload an archived workspace? Would be nice if that is reduced to this relevant part, and does not include too much unrelated stuff.
Crossover looks like extreme.. Correct your matching circuit.
What ADS version is that? ADS 2009? I imported your ADS2009 workspace to ADS 2020. I coulnd't see any obvious mistakes in EM modelling, but of course didn't see your original ADS 2009 settings.
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But as already mentioned, the crossovers are rather extreme and you should not expect the nodal circuit models (equation based) to be as accurate as EM simulation.
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You haven't shown what the difference is, but yes: EM should be more accurate here.
What I would recommend: do a careful investigation of the matching network sections (only that) and compare circuit model S-parameters to EM simulation results.
Hi volker, I already checked the S-parameters of each individual section, and extracted their input impedance, EM model give different impedance, compared to that in circuit model, and this is reason leading to power degradation in my circuit.
Hi volker, you tested S11 and S22 in the same layout input matching network. Can you explain why the results are different?
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