PCB trace GSM antenna be affected by EMI
There is a PCB design with 3 SIM800 GSM modules sharing a
external antenna. The external antenna is connected to the
PCB via an antenna connector, and from that connector, the
antenna signal is “shared” via PCB traces running to the
GSM_ANT port of the GSM modules.
As I do not know more about antenna design and EMI, I have a
question that is Could this be a bad design? Or should there
be scenarios that this design does not work reliably?