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Hi,
I have a Gerber file and I want to import it in CST. When I select 2D/EDA Files import in Import/Export menu, the Gerber button is light grey meaning that i can not use it.
I somehow have a feeling that I need to select the 2D cordinate system in 3D environment in order to activate the...
HI,
I have an artificial dielectric material structure, whose extracted relative permeability is less than 1. Real(mu) = 0.7 and imag(mu)=0.2.
I do not know how to comprehend this. What does it say about the material then?
P.S: the extracted permittivity is real = 2.7 and imag=-1.
Thanks in...
Hi,
I have designed a linear patch array of 5 elements with CPW feed.(the pic is attached)
My question is that in order to get the radiation pattern and 3D polar plot this array, do I have to use the concept of Antenna Array Setup or do i have to insert the infinit sphere for 2D and 3D the...
in your fabricated model the substrate and ground plane dimensions are not same. by my experience it does make difference.
what you can do is that in your simulation model you can make your substrate and ground plane dimensions same as that of fabricated one and see if it changes your simulated...
Hi,
I am simulating a CPW fed Patch antenna in HFSS at 60 Ghz. At first I used wave port for feeding the CPW according to the Port_Tutorial_CPW of ansoft, and got very good results. My antenna resonates almost at 60 Ghz.
But now when I use Lump port in the same design, My result changes...
thanks for the reply
1. what happens if you check the renorm all modes box. Actually I have to fabricate this antenna and then i will feed it with the infinity probe which will probably have 50ohm characteristic impedance. So only this reason I have checked this box so that the full port...
Hi,
Sorry for late reply but I am try hard to get right results. I have attached my model. there are two important things
1. the CPW feeding line should be greater than 7.5 mm
2. Antenna should resonate at 60 Ghz
I have got the results but they are not very good specially radiation pattern...
thank you for the help.
actually when I change only the length of CPW feed line (keeping the patch dimensions same), the |s11| of my model changes along with the shift. it means Zcpw and the Zsourse of my model is not equal. right ??
Can you tell me how can I make these two equal. I am using...
yes unfortunately its a requirement.
I think i figured out the problem. actually i was also changing the length of the CPW feed line which was causing the issue.
Now the issue is that I am not really sure of the length of the CPW feed line which will match with my antenna. I know a tool from...
yes i am using some formulas for the length and width of the patch antenna but i do not know any formula for the length and width of the substrate. Is there any formulas for that.
And when i change the length and width of the substrate, yes the bandwidth changes plus my antenna starts...
Hi,
I am trying to design and simulate CPW fed patch antenna in HFSS. Can any one here help me because I am confused in one thing. How can I know the exact length and width of the substrate (not height) because every time i change the length and width of substrate and ground plane my results...
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