ADRV9026 Impedance matching

The equation is : RX_SEDZ = 50*((RX_RC+1)/(1-RX_RC))

Ok thanks, that's already better.
Does Zo is alaways set as 50 Ohm? 
ADRV9026 RX and ORX are 100Ohm differential and TX is 50Ohm differential.

Cyril1383 said:

Does Zo is alaways set as 50 Ohm? 
ADRV9026 RX and ORX are 100Ohm differential and TX is 50Ohm differential.

Yes correct

We have made some impedance matching simulation, could you confirm that it's correct? 
These results are obtenaid with eval board  matching networds (MB). 

We used the same equation for all simulations RX_SEDZ = 50*((RX_RC+1)/(1-RX_RC)).

We are surprised by the small "gap" near 2250MHz as well as the poor match on the TX side (S22 is only -10dB).

Thanks.

Cyril.

Hope you have used the model files for the components that you have used. Also, take into account the board parasitics.

We used real compoents models (Balun, inductor and capacitor). Board hasn't been modeled yet.
Does this seems correct? Could you compare it with simulation on your side? 

Thanks.

All the plots are correct except the gap in between at 2.25GHz.

Below is the S12 for a high band match board:

Do you have the same plot for MB match?

I can't find what the cause of the gap.

No we dont have plots for MB match board. The plot should be similar to the one provided in the above post.