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HFSS simulates rectangular waveguide of Teflon
I simulated WR75 (a = 19.05mm, b = 9.525mm), which filled with Teflon, the length is 30mm.
The pink faces are port1 and port2 respectively.
Solutin Type:
Modal, Network Analysis
In wave Port port1 and port2:
Number of modes : 1...
Hi!
I want to simulate S-parameters for measuring Teflon by T/R method, and choose rectangular waveguide WR75 for measurement.
Then using NRW method to obtain permittivity and permeability from simulating S-parameters.
First assume TE10 is dominant mode, cutoff frequency is 7.87GHz and...
In NRW method, it need to solve below equation to decide n so that the material of permeability and permittivity can be determined.
In TEM mode, tgn, Ls and lambda_0 can be obtained, lambda_c approaches infinite.
But how to solve differential part in the brackets by program? I currently use...
Thank you! nomigoraya!
Simulating between 0~ 3 GHz. CST can give me a result, but I have tried to simulate at 0~5GHz even 17~18 GHz , the mesh is still very big( hundreads of thousands )and simulation procedure works slowly, it looks like that even 17~18 GHz is still hard to simulate. I'm not...
Hi! I referenced this video to create a coax air transmission line 2-port measurement.
https://www.youtube.com/watch?v=KfJNDlOG2nA
I designed a Ferrite ring, its outer radius is 7mm, inner radius is 3.04mm and length is 20mm,
the hollow part of ring and surface are set to PEC. The ferrite...
When I run Frequency Domain Solver with hexahedral. Simulation stopped and Message showed Materials with magnetic dispersion or magnetic conductivity in port regions are not supported. What ddoes it mean? Thanks!
Hi! I designed a ferrite bead model and choose Frequency domain solver. Frequency range are between 0 ~20 GHz. When I ran it, my computer operated slowly and crashed last. How should I set up my simulation environment so that I can obtain Results from 0~20 GHz?
Thanks for help!
I choice Frequency domain solver as solver.
Oh, I see! However I want to remove higher mode from ports so that S-parameters results don't include effect from my 2-ports measurement.
Is there other method to remove effects caused by ports?
Hi! Everyone!
After I simulated, I want to remove higher mode from ports by Exclude port mode in Post Processing,then exported S parameters. But CST appeared message:
Export S parameters data failed.
My model is APC-7 coax air transmission line, and the middle part is Teflon.
What is the...
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