I have a 2 layers PCB that I mount a Wi-Fi module. Components (SMD) are placed on the bottom layer and the Wi-Fi module is on the top layer.
I apply ground plane on both layers, as I read, it is good for the EMC compatibility. I know multiple layer design is even better, but now I need to have only 2 layers design.
I wonder if the ground plane might interfere or disturb the RF signal or block the signals coming from the other part of the board?
In this sense, is it fine to keep the ground plane on the both layers or make some holes on the PCB to prevent Farady's cage kinds effects?
Edit: here is the link of datasheet of the WiFi module http://www.zcomax.com/embedded/ZCN-722M/ZX-ZCN-722M-DS.pdf but it is a very simple one