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you just need to compute the magnitude and phase using the complex data:
if real(Ez)=X, and im(Ez)=Y and Ez = X + iY
|Ez| = sqrt(X^2 + Y^2)
and <Ez=arctan(Y/X)
you can ue MATLAB or excel to calculate them easily.
what about the pattern? and S11 limit you can have? with -10dB it would be hard. as it is on a car roof, I guess it will need a kinda backfire antenna, I suggest wideband antennas like vivaldi, or low permittivity DRA. Anyway, DC-3GHz is very hard, what is exactly the bands you need? Is it UWB...
many request various antenna designs for HFSS, I think the best way is to use the HFSS ANTENNA DESIGN KIT available for free at **broken link removed**
the kit gets design parameters for different types of antennas and gives a complete simulation project, including the somehow hard to achieve...
First of all, you geometry is too small, perhaps you indicated the size in cm not mm which should be the case.I have fixed it by choosing cm in the dimension definitions.
Second, you ddn't trim or insert shapes to each other, this doesn't work, I've fixed it too.
Third, you had to make a thick...
just a quick note:
n is not equal to sqrt (e_r); you can simply see that by multiplying sides of both equations: mu*epsilon=n*z*n/z=n^2 => n=sqrt(mu*epsilon). So the correct equation is n = sqrt (e_r*mu_r); however, as mu_r is in most cases very close to 1, most of the times you can assume...
Your port definition is incorrect. The width of the port should be between 6 to 10 times the width of the microstrip, and the height should be ~4 times the thickness of the substrate, from lower side of the ground to the top.
However, you have a very unusual thick ground plane, why is it so...
The inset is to match the antenna to the feed, different points of the patch have different impedances, depending on the mode. I suggest you to consult microstrip antenna design handbook by Garg: https://www.amazon.ca/Microstrip-Antenna-Design-Handbook-Garg/dp/0890065136; or any other microstrip...
right click on "Field Monitors" in the project tree, select "New field monitor", and then E field. specify the frequency you are interested in. Run the simulation. Select "e-field (f=2.4) [1]" from "2D/3D Results"->"E-Field" in the project tree. Go to "File"->"Export"->"Plot Data (ASCII)"...
First, to see the impedance, go to "Results->S parameter Calculations->Calculate Z and Y matrixes", then go to 1D results tree, choose Z Matrix. Then you can see the Real, Image, Mag and phase of the impedance in the whole frequency range. It is calculated from the S parameters, so it is...
A PhD is the only official way to see if someone has or has not the ability to understand and analyze problems in a certain field. And it is not courage to simply tell everybody to shut up. What you added is like to say I do not fear of police. Well, you should not, as far as you obey simple...
my friend, we are all here to help each other, why do you keep posting like that? If there is any problem in my posts, please indicate it and tell us what is right; otherwise, please kindly stop fighting. For your information, I got a PhD in this, it really hurts when you tell me I have to "READ...
First: "that awfully some one said cpw impossible in one frequency!" I'm not saying it's impossible, but it's hard because of the dimensions; when you have such a high frequency design, the dimensions become very small. As an example: on Rogers RT/duroid 5880 substrate with thickness .5mm; a CPW...
Hi,
As for the first question, NO, you can not feed microstrip antennas with CPW, BUT, keeping in mind that CPW is actually more like a two-line feed (the wave is going in the slots), you have similar antennas as microstrips, just a little different. For example, a microstrip dipole is, of...
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