Antenna ground plane
Antenna ground plane
(OP)
I have a large d/sided pcb with microcontroller and 433M Rx/TX module attached. I want a PCB track antenna of 16cm length along one edge.Track width is 60 thou ( 1.5 mm) . Do I/must I have a ground plane underneath it? I know about keeping other stuff 5mm away. I have a VCC plane on the topside. Does this have to be kept 5mm away from the aerial track as well?
Thanks.
Thanks.
RE: Antenna ground plane
As to your larger question - perhaps someone here will have some recent hands-on experience. My guess is that you would want to keep your antenna away from everything else (including parallel surface ground planes).
RE: Antenna ground plane
You can further shorten the antenna by capacitively loading the far end to ground but this will need some more serious maths or modelling to get right.
RE: Antenna ground plane