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AFE7950: How to simulate in ADS

Part Number: AFE7950
Other Parts Discussed in Thread: TRF1208,

Tool/software:

I would like to use the S-parameters of the AFE7950 and TRF1208 to perform a simulation in ADS.

TI provides S-parameters for the TRF1208 with 2 to 4 ports, while the AFE7950 only provides 1-port S-parameters.

Could you provide me with a sample of how to create a model using these?

I am currently manufacturing and evaluating a circuit I designed.

I designed it to be optimized for a frequency characteristic of 9GHz, but there is a notch at 6.9GHz, and the characteristics are poor even at the intended frequency of 9GHz, so I would like to find the cause of this.

I would be grateful if you could give me any clues.