I am trying to replicate the S parameters results from the datasheet in the ADS for 1950 MHz matching. I am using the following schematic:
The substrate parameters are from the IS410 (FR4) from ISOLA.
The results that I had are these:
These results make no sense at all. I have already search previous posts and I am not the only one with this problem.
What could be wrong in my schematic? Honestly I can only think in the S parameters model. I tried both the S parameters model from the AD (Analog Devices) site and the datasheet one.
Both gave me bad results. Also, I don't know why are the S parameters of the datasheet so different than the ones on the AD site.
Thanks in advance,
s3p file is not deembedded but includes matching components,
If you mean like default eval board, yes it is 1950 MHz.
PS: there is a error in the schematic image. the capacitor i have used to achieve the shown results had a value of 1.6pF
Which is the matched frequency? 1960 MHz?