Rogers 4350 + Agilent Design System

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Rogers 4350 + Agilent Design System

    by ideafix13 » Mon May 28, 2012 2:10 am

Good morning.

I've recently ordered a PCB from Sunstone and I'm trying to fit the measurements of the Vector Network Analyzer with the results obtained with the Agilent Design Systems 2011 software.

I've defined the substrate on the software as follows:

+ Thickness of the Rogers 4350 (measured in the laboratory) 0,020"
+ Dielectric constant: 3,66 (as Rogers 4350B indicates).
+ Thickness of the conductor : 1 oz (0,035 mm)
+ Type of the conductor: I assume that is Copper, but the PCB is Silver Plate Finishing. Does the silver plate finish indicates that the conductor is Silver?

When I compare both measurements and results, both doesn't fit. The frequency range in which I'm performing the measurements is 100 MHz until 4 GHz.

Am I defining correctly the substrate on ADS?

Thank you very much.

Posts: 1
Joined: Mon May 28, 2012 2:00 am

Re: Rogers 4350 + Agilent Design System

    by Barbie » Mon May 28, 2012 8:46 am


I am not 100% sure that the dialectric constant is the same as the listed 4350B material. This is the link to our website explaining what material we have. But I am unable to located the actual Construction information for this because of the holiday today.
Rogers Materials

That constant figure would be the only thing that I would question in the calculations of the Rogers material on our end. I will have the quality manager check up on this for you tomorrow and post a response once I find out if the 4350 is the same as the 4350B you have listed.
Barbie Dunham

Customer Support Representative
Sunstone Circuits
13626 S. Freeman Road
Mulino, OR 97042
Phone: 800-228-8198
Fax: 503-829-6657
Posts: 14
Joined: Mon Apr 02, 2012 12:00 am

Re: Rogers 4350 + Agilent Design System

    by Sal Hernandez » Wed May 30, 2012 6:49 am

You do have the material specs right. The pcb material is .020" thick with a .0015" tolerance. The conductor is copper of 1 oz thickness and should be no less than .0014" on the top and bottom layers. Please contact customer support if you have any other questions.

Sal Hernandez
Software Support Engineer I
Sunstone Circuits
13626 S. Freeman Road
Mulino, OR 97042
Phone: 503-829-9108 x226
Fax: 503-829-5482
Sal Hernandez
Posts: 381
Joined: Wed Jul 06, 2011 12:00 am

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