New answers tagged antenna
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Does using an antenna extension cable violate FCC cert?
usually, if the board has an RF connector, FCC measurements are taken by connecting the RF connector to an EMI receiver by a coaxial cable.
In words: RF measurements are conducted measurements.
They ...
- 4,201
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Monopole antenna with coil design
How does the loading coil work in this case? Is it even a loading coil
at all?
At the intended frequencies, this "coil" would have immense inductance, if you considered its inductance alone....
- 24.4k
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Monopole antenna with coil design
advertised to be suitable for operation in the GHz range
Marketing will literally claim anything to sell an antenna; that's very much their job.
An antenna that doesn't come without a plot of ...
- 90.8k
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PCB antenna connector and copper signal names
The usual way to design a planar / PCB element like this, is to use net bridges. This is a component which is allowed to short between two nets. Usually the copper objects within the "net ...
- 27.4k
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Balanced vs differential signals
This is my view of the problem
According to the electromagnetic theory of guided TEM waves: the current flowing at the surface of the central conductor and that at the inner surface of the shielding ...
- 783
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Balanced vs differential signals
Here are some equivalent circuits you may find illustrative:
simulate this circuit – Schematic created using CircuitLab
Consider for sake of argument, the values of impedances don't matter, ...
- 27.4k
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What is the actual physics and reasoning for the “Ground plane” underneath a GPS patch antenna
A patch antenna looks more like a capacitor divider, with the top plate coming in from free space (incident electric field), the middle plate being the patch itself, and the ground plane being, well, ...
- 27.4k
3
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Yagi antenna with 16 dBi gain, is it bottle necked by the power input?
The antenna doesn't care how much power you put into it, as long as it's not so much that it arcs or melts.
When working with decibels they add. So if your amplifier is 5 W, that's 37 dBm.
If you put ...
- 19.7k
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Does an aggregation of two lambda/2 dipole antennas z-axis oriented radiate towards the mentioned axis?
No. The radiation pattern will still be perpendicular to the Z-axis; perpendicular to the length of the antennas. The combined pair will radiate in the x-y plane.
Exactly what that pattern looks ...
- 10.3k
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