Do CB antennas need a ground plane?
A Groundplane is needed for any CB antenna to work, without it the antenna will not transmit very well and your SWR reading will probably be very high.
What is the purpose of a ground plane for an antenna?
In telecommunication, a ground plane is a flat or nearly flat horizontal conducting surface that serves as part of an antenna, to reflect the radio waves from the other antenna elements.
Is stainless steel a good ground plane?
Any metal that is a reasonably good conductor will work as a ground plane for a typical patch antenna. Silver or copper are best, aluminum, steel, iron, zinc, tin, etc.
What is a no ground plane CB antenna?
‘No ground plane” (NGP) CB antennas with NGP coax were specifically designed to solve the problems associated with the lack of ground plane (counterpoise). This normally occurs on vehicles constructed of plastic, fiberglass, and wood.
Are ground planes necessary?
There are some situations where your device will at least work without a ground plane, but “working” and “success” aren’t always the same thing. Placing your ground plane and routing to ground are two of the most important 2-layer PCB design rules and considerations.
Does Aluminium make a good ground plane?
You can use foil or anything conductive. If you were referring to aluminum cooking foil, that is very wide and would make a better ground plane than a wire of the same length.
What is the best way to ground a CB antenna?
Worth mentioning again is that the most important part of getting a good ground is to attach the ground to metal rather than plastic or other materials. You also need to place the hot side of the coaxial cable to the antenna itself. The ground is the side that comes from the shield of the coaxial cable.
How big should a ground plane be?
As per calculations, ground plane (m * n) should be minimum 6 times the height of the substrate added to the length (m) and width (n) of the patch.