Their feed line was 20mil (0.50mm) width but using a 4-layer PCB, so I changed it to 1.4mm. Will my design work this way ?
Do I have to change the lenght of the trace ?
One more thing I was never sure to clearly understand: should I add a ground plance on the bottom layer (antenna being on top layer) or should I leave the area around antenna (top and bottom) free from ground planes and routes ?
If I print my next PCB in 1.6mm thick instead of 0.8mm without changing the other dimensions of the antenna, will change my results ?
I have very often seen sentences like: "Distance between ground and trace, trace width and dielectric material are the main factors" but my question is how can I calculate the distance between ground and trace ?
Not much, because the field of your antenna is mostly in air.
(It would be important for antennas with a ground below, e.g. patch antennas.)
This does not apply to your antenna, because there is no ground below.
I used the board thickness to calculate the feed width.
How should I trace my ground connections? Jus as short track from one connector to the other as possible with no ground plane on either side?
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