1.5.2 NINA-W102The NINA-W102 module is equipped with a PIFA antenna. The RF signal is not connected to anymodule pin.2.5.1 Internal antennaBoth NINA-W102 and NINA-W106 have internal antennas specifically designed and optimized for theNINA module. The NINA-W102 module is equipped with a 2.4 GHz PIFA antenna and the NINA-W106module has a 2.4 GHz PCB trace antenna... In both NINA-W102 and NINA-W106 designs, keep a minimum clearance of 5 mm between theantenna and the casing. Also, keep at least 10 mm of free space around the metal antenna includingthe area directly below it. If a metal enclosure is required, use NINA-W101 and an external antenna.