QUESTION

Question

I am using corner placement LoRa antenna SR42IO10-L. For mechanical reasons the antenna must be located a short distance from the edge of the board. Should I leave the GND fill to the left or remove it?
 

Answer 1

Hi,

I would suggest removing the ground on the left but what is the length of the PCB? This antenna is very ground plane sensitive

Comments

Thanks, that's what I thought. I'll remove the GND flood on the left. The board is 4-layer 72mm x 94mm with two solid internal GND planes and GND flood top and bottom. The GND planes are split by an NFC antenna loop but interconnected via multiple wide traces on multiple layers. As well as NFC there is another BLE radio. I think the GND plane should be ok.