- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
Problem with calculating the transmission line parameters in CST
Using the theorectical equation (http://www.technick.net/public/code/...imp_microstrip) and the specifications
W = 1mm, h=1mm, T = .01mm, er = 4.4 , I am getting
Co=7.666085562280599e-11 and Lo = 3.9913806505935243e-7
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I modeled the same in CST MWS2006 (model attached). But I am getting the tr line parameters as
Kindly help in identifying the mistake i made.[/quote]
Discrepancies between CST and actual measurements can
be caused due to these common issues:
- Way you excite the structure. For microstrip line excitation use a plane
wave
- Meshing can be also crucial, examine your structure carefully
- Define material (dielectrics, metals etc.) properties in detail, considering losses etc.
- Boundary conditions, use same ones like the ones you use in your reference
design
MWS can easily handle such simple structures, like the one you try to simulate,
so it seems that your input parameters and your geometry need
to be re-examined.
Good luck!
Hi,
the online calculators return something line Inductance per meter.. e.g.
In MWS you get a pure Indutance value (NOT per meter).
Make sure that you transform one value to the other ...
Best regards,
F.
申明:网友回复良莠不齐,仅供参考。如需专业解答,请学习易迪拓培训专家讲授的CST视频培训教程。
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