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You have to properly set the HFSS simulation into Ansys Workbench. Then you re-run the HFSS simulation, and you have to link the results with a Thermal (Steady State or Transient) module in Workbench. Once you have imported the dissipated losses into that module, you can easily get the...
Hi Zohre,
You don't have to get a confusion between Scale and Scaling Factor.
Once you have imported the HFSS simulation results into Workbench, you have a parameter named Scale. This parameter is equivalent to increase the source power (in Watts) used in the excitation of the ports in your...
Hi,
There are two issues in your code:
- Number of frequency points is 37, whereas the number of s-parameters points is 33. So the code does not work as it; I just used f=linspace(30,50,33) instead.
- Your s-parameters are in dB, but you need real-imaginary parts to compute the effective...
Hi,
There's no relationship between the design thickness and the airbox height. I would recomend you to leave a couple of lambdas, in order to let the attenuation of the reactive fields generated on the metallic surface when the incident wave impinges it.
I don't know how is your design...
Hi,
If you have a metamaterial resonator inside a periodic unit cell, you can easily retrieve the effective parameters (eps and mu) from the s-parameters, by applying one of this methods:
-Nicholson-Ross-Weir (NRW), explained by Ziolkowski here: "Design, fabrication, and testing of double...
Hi Muhammad,
The deembedding distance should be like 7 mm, that is 39 mm (max height in z dimension) minus 32 (maximum height of your design), or 3.5 mm if you have a transmission design, and your design in centred along z with the airbox.
However, I would recommend you to fairly increase the...
Hi Mahima,
You can find an example of metamaterial unit cell in this post: https://www.edaboard.com/threads/87180/#post382922. You have to change the inside resonator, and place your SRR resonator. You have to scale the unit cell size to the periodicity you want to have, and chage the solution...
Hi Mamase,
You can artificially define a metamaterial by applying the reported relative dielectric permittivity and magnetic permeability to a material used in your design.
On the other hand, you can simulate a metamaterial resonator (e.g. Spiral o SRR) in a periodic unit cell, and try to...
Hi,
I tried the simulation with HFSS 13 and 15, and I got similar results in terms of matching and radiation patterns. My only concern is that you use an air-dielectric coaxial, or you forgot to assign material (e.g. Teflon) to the air in the coaxial probe.
Regards,
Pere
Hi,
Could you please show how is your design?? In many cases, the deembeding is till the beginning of the metal parts in your design, or just the beginning of your design, even though it is only dielectric. The thickness of your design is also referred as effective thickness, since it usually...
Hi,
You can find an example of Patch Antenna Design with Coaxial Feed in the HFSS (Online) Help. By the way, you can easily define the two feeds by using two coaxial probes, one for each patch antenna. Then you will have two excitations, one for each coaxial probe.
Let me know if you still...
For HFSS, you need a desktop computer with at least these key points:
- One/two processors with as many cores as you can afford (like Intel i7 ones)
- 8-16 GB of RAM Memory
- Dedicated Graphics card (ATI Radeon, Nvidia) with 1-2 GB of RAM
With the indicated budget, you may easily meet...
I totally agree with BigBoss. In addition, sometimes the software that works better is the one whose simulated results are closer to the measured data. However, current softwares are really efficient, and most times disagreements are only due to the fabrication tolerances, or on the source...
Hello,
Theta and Phi denote the angles in spheric coordinate system. In such a case, the angles would be defined as thetap = 15 deg, and phip = 0 deg or 90 deg, depending if your incidence is along x or y axis.
Pere
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