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Sorry for my poor skills. I am not very sure for your words of "the gaps in the tops of your "mushroom"-like structures".
Is it the area indicated by the red arrows in the following attached picture? Thank you.
Hi PlanarMetamaterials,
Glad to see you again. We have a lot of discussion several years ago. The posted model is a "dual linear 45 degree slant polarization antenna array".
Is it possible to give me a little bit more details of your comment of "highest mesh density to coincide with the...
CST,Plot of Co- & Cross- Rad Pattern for Linear 45 degree Slant Polarization Antenna?
Dear All,
I am plotting Co- and Cross-Polarization radiation pattern for a linear 45 degree slant polarization antenna array. Following online guideline, I set the slant angle=-45 degree.
After that, in...
Dear All,
When we use HFSS or CST to simulate antenna (unit or array), at where we should/can manually increase/refine the local mesh of structure to improve computation precision? Please take a look at the attached pictures of unit and array. Thank you.
If you know please kindly let me know...
Hi everyone,
TO get a correct waveport size, I run "PortOnly" simulation in HFSS. But there are two optional port sizes which seem both correct. Can you please tell me which one is more correct/better?
(1) Port-Height=2.6mm => Port-Width=3.79mm;
(2) Port-Height=3.5mm => Port-Width=3.76mm.
The...
Hi Andryuha, Thanks again for your reply. One final question is about what you said, "double-check your transmission line with rectangular waveport".
Why should we check it again with the rectangular waveport? And, what items or performance should we check, compared with the coax-waveport...
Hi Andryuha, Thanks so much for your reply. "tweak the dielectric to get the best results"? Can you explain how to do it?
In Datasheet, the dielectric used is “Dielectric: Virgin PTFE Fluorocarbon Per ASTM D1710”. In HFSS, I chose "Teflon" correspondingly whose dielectric constant (er) is 2.1...
Hi albbg,
Thank you for your reply. The problem is I am not sure if 48 ohm is its real impedance, or there is something wrong with my HFSS model and let it below 50 ohm.
Why my SMA connector impedance below 50 ohm? Thank you.
Hi All,
I designed a SMA connector in HFSS to excite a microstrip line. It is constrcuted based on the Datasheet from its manufacturer (SouthWest Microwave.inc).
It is 50-ohm connector. However, HFSS simulation shows that its impedance...
Hi all,
I built a SMA connector model in HFSS. The SMA is female and bought from Southwest Microwave.Inc.
However, it is my first time to construct the connector is HFSS. Thus I am not sure for my model.
Could you help me check it if it is correct and reliable? The HFSS.file and Datasheet are...
Hi all,
I measured a circuit with input/output SMA connectors. But the measured results are much different from (worse than) the simulation results using WavePort.
To find out the reason, I compare the simulation results between WavePort(rectangular), LumpedPort, and Coax(using waveport).
I...
Hi fereshteh,
Thank you for your reply. It is a SIW with its transition of a microstrip line.
The waveport is used to excite the microstrip line. However, I am not sure which one of the above three sets is correct for a microstrip line in an enclosure box. Could you please give me some...
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