RAK811 U.FL Ground for bottom

[HelloRio (Moon)]

I’m a newbie for RF pcb layout…
I want to put rak811 on my board with U.FL connector.
My board has 2layer(top/bottom).
Is it better to pour ground copper under U.FL connector for the bottom layer? or not?
Thanks.

[Nicholas]

Dear:

Maybe this forum can help you!

Enable ext antenna through U.FL

This is a fairly quick question. Do you have to do anything to enable the U.FL connector? I’m getting very bad RSSI and range when using the U.FL connector and am trying to troubleshoot the problem. When using the SMA connector I’m getting RSSI in the -40 to -50 dB range, when using U.FL I’m in the -105 dB range at around 20 metres. I’m using the https://www.mouser.ca/ProductDetail/Pycom/LoRa-Antenna?qs=MLItCLRbWsziwtsd5t33VA== antennas and Rak811 breakout with Raspberry Pi.