Arm Mbed OS support forum

Encapsulation of electronics (SX1276/1261 Shield) - antenna tuning

Hi everybody

We’re working with SX1276 and SX1261 mbed shields.
How much does encapsulating the electronics with epoxy resin affect the antenna tuning? Is there any experience?


RF would normally only be significantly be affected by metallic substances in the insulating material.
Epoxy resin in theory should not contain any, check the composition.
One way street though, once epox’ied its it the bin if you need get physical access to the PCB again :cry:

@star297 Thank you for your answer.
I didn’t mean the impact on the RF signal, but additional capacity trough the epoxy which could cause a shift in the antenna matching and thus reduce the TX power.

There is this publication if it helps: