stenzer
Advanced Member level 3
Hi,
I already made a couple of PCBs operating at lower frequencies. Currently I'm planing to realize a project operating in the sub - GHz range. I have seen a lot of pictures of realized RF projects. Most times the PCBs does not have a ground plane at the top layer. Is there a reason for that, beside the PCBs most times look like the are etched at home ;-). I found the following document https://www.ti.com/lit/an/swra367a/swra367a.pdf, on page 5 a top layer GND plane is recommended.
I know I should avoid a GND plane below a signal path due to due stray capacitances, as for low frequencies. Are there any other recommentations?
BR
I already made a couple of PCBs operating at lower frequencies. Currently I'm planing to realize a project operating in the sub - GHz range. I have seen a lot of pictures of realized RF projects. Most times the PCBs does not have a ground plane at the top layer. Is there a reason for that, beside the PCBs most times look like the are etched at home ;-). I found the following document https://www.ti.com/lit/an/swra367a/swra367a.pdf, on page 5 a top layer GND plane is recommended.
I know I should avoid a GND plane below a signal path due to due stray capacitances, as for low frequencies. Are there any other recommentations?
BR