Hi @Aagra.1​ ,In the datasheet, Search for FERR_L, HSE32 crystal requirements, HSE32 TCXO regulator characteristics for more information. Concerning the question about frequency drift, please, see my answer below. Do not confuse frequency drift with ...

Hi @Rvan .8​ ,If the thermal barrier is sufficient to prevent the frequency drift, then the tcxo is not mandatory for LoRa applications.It's not simple to say whether a thermal barrier is sufficient or not because it depends on PCB materials etc. Wha...

Hi @David Orr​ ,I would like to answer your question with some simulations and other useful information, but I don't have the time at the moment.If your concern is just about the circuit topology, make sure that you have the right PCB antenna designe...

Hi @David Orr​,I'm trying a few things to show you.Can you post the S-parameters file, please?I'm not finding the antenna's output impedance, or otherwise, the antenna's input reflection coefficient without the matching network.Do you have it?

Hello @David Orr​,You can use it. There is no problem. The RF switch should see 50 Ω from your L-L-C network and your antenna chip should see its impedance conjugated.Note that the 50 Ω feed comes from the RF SW output (when using RFO_LP or HP).FYI: ...