Hi,
Board #8 does not mention which switch is used (U2). I assume it is the same switch as in board # 5 (PE4259SCBECT-Z). R22 on board #5 is 8.2 kOhm. The equivalent resistor R20 on board #8 is 8.2 Ohm. I assume this is an error, and should also be 8.2 kOhm.
Regarding this shunt resistor: Why is it there? The RFC pin in the switch datasheet does not mention any pull-down resistor here (or filter). I understand that the series caps are for DC blocking.
Where can I find exact dimensions for the antennas in order to implement them in my design?
Are there gerber files and schematics available?
HC