I can down S-parameter ，and match the IC.but how to simulate harmonic，especially mix(spurious outputs)
ADS is produced by Keysight, not Analog Devices. I recommend visiting the following page information and support:
Advanced Design System (ADS) | Keysight (formerly Agilent’s Electronic Measurement)
l have read，simulate harmonic，l need X-parameter，l can't find。
If I want the simulation module to be self-excited （resonance）, what kind of good software can be introduced? The estimation of the upconverter and down conversion isolation by means of the upconverter and down conversion module is very different from the actual results.
In the design process, there are many problems that cannot be solved. The Sigrity can't achieve the desired effect. Can you introduce one or two software to us? You need help.Thanks
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