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Thanks for your reply!
It sounds as if you are talking about vectors or trigonometry, but I am not sure...
Is there a diagram to explain a bit further?
Also, the formulas do not have anything to do with a series/parallel conversion?
Hi everyone,
I am studying Quality factor for a reactive component,
and the definition says it is the ratio of reactance to resistance of a capacitor or inductor.
However I am confused about the formulas:
where the subscript s = series, and subscript p = parallel.
My question is, if...
Hi everyone,
I am having trouble understanding the difference between skin effect and skin depth.
I know what they are; that:
Skin effect is when there is more current flow nearer to the conductor surface as frequency increases, rather than utilizing the whole cross sectional conductor area...
I would like to calculate the inset feed dimensions for my patch antenna,
Peak Impedance (impedance at edge) is 155.9072 +50.9807j.
I rearrange the formula:
with 50 ohms being the one you want, Zin(R).
My question is, in the calculation,
for the other impedance value Zin(0), should I use...
I have some questions about radiation boundary I want to clarify,
1) How long should the radiation boundary extend?
I have heard it should be 1/4 of wavelength.
If so, which is the correct way to implement?
1/4 wavelength height and start at position 0 (bottom, ground plane)
This makes my...
Oh, ok...
I changed the design to this so that the extension is distributed.
The transmission line represents a switch (pin diode) to turn the patch extension on.
But the frequency is still increased instead of decreasing?
Ah ok. Thank you for your helpful replies! :)
I have checked online about dual band patch antenna and found one similar to what I want to do:
https://slidegur.com/doc/335663/reconfigurable-patch-antenna-powerpoint
However it does not show what the current path should look like.
This is the...
What is the difference between the options "fill", "solid region" and "polygon pour" in altium?
They look quite similar but are they used for different things?
Hi,
I am using altium to design a patch antenna, but I don't know how to draw the patch in altium...
Could anyone please advise me the steps how to do this?
I am trying to make a reconfigurable patch antenna but have trouble with simulation.
The first patch should be at 2.4GHz and then the first + second patch should be 2.1GHz.
Theoretically the frequency should decrease from 2.4 to 2.1GHz when the second patch turns on (I.e when the length of...
No, unfortunately it didn't.. So what you are saying is that the radiation box is too close to the antenna? Is there any guidelines to how far from the sides it should be?
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