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Hi all
I am trying to simulate metamaterial lens (https://doi.org/10.1016/j.sna.2010.12.004)
I am able to apply the master/slave boundary conditions for the 1D case.
However for the 2D case, it is showing a runtime warning as: Matching boundary process might encounter unexpected conditions...
Hey,
So I tried the two things.
With the 2D structure, I am able to get the left handed transmission peak at 2.8 GHz as described in the paper. (The HFSS model is attached)
However, with the 1D structure, I am still not able to get the peak (using different number of unit cells didn't solve...
Hi ,
I have used 3 cells as in paper, but getting similar transmission response ( i.e. no left handed peak at 3 GHz). Switching to a larger number is supposed to make the lens more effective, hence tried using 4. I might well use a larger number and see if and how it is affecting the response...
Hi everyone,
I am trying to validate Shreiber et.al. 's paper on Metamaterial lens simulation for microwave NDE (https://doi.org/10.1016/j.sna.2010.12.004).
I have attached the HFSS model I am using for the validation. I am getting the normal transmission after 5.5 GHz, but unable to get the...
Hi everyone,
I am doing a simulation of two Vivaldi antennas working from 4-8 GHz separated by a distance of 500mm with PEC cylinder in between (Screenshot attached). I want to obtain the scattering parameters for them.
While interpolating sweep is giving close results to discrete sweep for...
Hi everyone. While trying to verify the article on CSRR based sensor , 'Complementary Split-Ring Resonator-Loaded Microfluidic Ethanol Chemical Sensor' by Salim et. al. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5134461/) , I am not getting the correct results.
I tried using both lumped...
Pardon me if I am asking a trivial question, but isn't it applicable when I am specifying my boundary box as radiation boundary? I have verified some resonator structures but without specifying the boundary as radiation and results did concur. Can you please tell me whether its correct way of...
okay so you use wave ports itself while simulating, defining only /one mode. Am I correct ? Also can you help me in another regard. While designing resonators, do the box sizing guideline of lamda/4 be followed as the structure is not radiating ?
Hello everyone.
If I want to simulate a SMA connected source to a microstrip fed patch, should I use lumped ports or wave ports?
I am having this confusion as when I am using wave ports using sizing guidelines provided in the manual, a message is coming where it is showing that the port...
Thank you for the help. I had one more doubt regarding modes if you could kindly clarify.
As i have gone through literature, the even and odd mode impedences in a broadside coupled stripline structure differ by a large value with the odd mode impedance being significantly smaller usually. Am i...
Hello everyone
I need to simulate a broad side coupled transmission line structure in hfss. However I can't find any reliable source of wave port size guidlines for broad side coupled lines. Do I need to fix the waveport size by seeing the port fields or is there any other solution.If anyone...
Alright I found out what my mistake was. The wave port size was small so it didn't allow any propagating modes. I am now getting correct results by increasing the port to appropriate size.
Hello everyone.
I am new in simulating SRR and CSRR based structures in HFSS. While trying to verify the paper "Compact Second-Order Bandstop Filter Based on Dual-Mode Complementary Split-Ring Resonator" by Ebrahimi et. al. , I was not getting proper results in S11 as well S21 values. I have...
Hello everyone.
I am looking for planar resonator designs which can have an axial electric field excitation normal to the plane of the resonator. Till now I could only get Complementary Split Ring Resonators (CSSR) as the viable option. Are there any other types of planar resonators which can...
Thank you very much @albbg for your guidance. Following your instructions, I was able to get a good efficiency in my circuit. Apologies for my late response.
Actually I don't have a specific load requirement for my circuit hence used 50 ohms for simulation purpose.
One other question if you...
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