HFSS internal mesh too large

[neoflash]

Hi, folks:

I am simulating a diff pair by HFSS.
The geometric is quite small.
Trace width=3um.
Trace seperation=7um
Trace distance from ground plane=20um

I ploted the field plot on port, it looks quite ok. However, the field plot on internal cross-section face (somewhere middle between two ports) is quite coarse. Since I have already make accuracy setting very high. How can I make sure that the results are right?

Is it right to have internal field so carse? How to refine it?

thanks,

 

[neoflash]

Pic

 

[Mr. D.]

Hi

We did a work about mesh ops and refining. See pdf. It's written in german though but it has lots of pics. Just ask if necessary.

D.

PS: check:
**broken link removed**

 

[mike_bihan]

Interesting issue.
I am curious that why HFSS converge with so coarse mesh?