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Do you have a link to the video?
There's a how-to in the Help Centre on conformal patches. (Hope you have login!)
http://www.feko.info/support/helpcenter/how-to/how-to-construct-a-conformal-patch-antenna
What paper is that? Apart from the line feed you can also use the following feeds:
1. an edge port placed on an edge that separates two surfaces (when i.e. placing a feed on a metallic surface)
2. a waveguide port if the feed is modelled with a coaxial cable connection
3. a FEM current source...
Pity you don't have FEKO - this type of model can be easily done with a reflection and transmission coefficients calculation using Periodic Boundary Conditions.
Below I have modelled 3 infinite dielectric layers stacked on top of each other with dielectric parameters similar to human tissue. The...
Waveguide ports can be rectangular or circular or co-axial.
For arbitrary shaped geometry, i.e. parallel plates you should use the FEM with a FEM modal port.
I am not too familiar with CST. Regarding FEKO, which version are you using? Recently there has been improvements on their MLFMM solver that uses out-of-core solutions, so you can solve bigger models in effect without having to give up some on convergence. Have you read through the Help Centre...
Re: FEKO execution in Linux
There is no real speed improvement in Linux over Windows, but Linux's memory management is better - you would probably be able to run models with a few hundred MB's more memory in Linux compared to Widows.
Create a grid search with the optimiser where the parameter to "optimise" would be the variable for the capacitor value and the "goal" would be an impedance goal.
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