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Coplanar Waveguide (CPW) Simulation

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Hi

I am trying to simulate a simple CPW in ADS momentum. I have used the differential port setup as shown in the attached image. I have also attached my substrate configuration. The simulation is giving me the following warnings:

--- WARNING -------------------------------------------------------------------

S-parameter results show unphysical behavior for certain frequencies.
Cause : - inaccurate (high frequency) calibration ;
- electrically large via using lumped model ;
- higher order modes at the ports ;
- slot mode at coplanar ports ;
- grouped strip-slot ports ;
- mesh density is too coarse.


and the results are strange as demonstrated in my attached image. I have also attached my workplace file.

Will be delighted if someone can help me with that.

Amir4008 on Feb 7, 2016 7:46 PM


附图/附件


1.jpg


2.jpg


3.jpg

Coplannar_wrk.zip

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