How to place these two capacitors in ADS?

[mohamis288]

Hello,
I am working on a IC which I WANT to do simulation on this in ADS. s-parameter file of this IC is available in the producer company. I am modeling the test circuit which is available in the datasheet. here it is:

but I do not know how to model capacitors "C6" and "C7". In my schematic I have assumed that the red connections are open-circuit for the sake of simplicity. My ADS schematic till here is represented in the following:

How can I model "C6" and "C7"? Can you show me on ADS, please?

 

[BigBoss]

Between TL6 and Step3 ( symmetrical )

 

[mohamis288]

Between TL6 and Step3 ( symmetrical )

Hello, Well I am speaking about a 1000 MHz test circuit. As you know, it is very important to place each component on its place exactly. In order to clarify the situation, Please pay attention to the following image:

The purple lines show five candidate place for installing "C7". It is clear that as per the datasheet, candidate 1 is the best one. If I place C7 or C8 according th what you have said before, It is installed on the candidate 5 seemingly. Does it make sense?

 

[BigBoss]

Nobody knows that. It's a tuning capacitor and someone can shift to left or right to tune the matching circuit.

 

[chiques]

The effects of locations 1-5 can only be seen using a 3D simulator (like HFSS or CST). ADS (2D simulator) won't work since this is more of a EM & coupling effect.

 

[mohamis288]

The effects of locations 1-5 can only be seen using a 3D simulator (like HFSS or CST). ADS (2D simulator) won't work since this is more of a EM & coupling effect.

Not 100% correct. Actually, we can perform co-simulation on this particular section in ADS. And then using that, we can draw the residue of circuit in the schematic.

 

[chiques]

Not 100% correct. Actually, we can perform co-simulation on this particular section in ADS. And then using that, we can draw the residue of circuit in the schematic.

Which uses Momentum