NFC Antenna Wiring


#1

I know that Particle sells an NFC Antenna for Gen3 devices, but I would like to make some from parts that I have.

I have these from Molex:

Rectangular Near Field Communication (NFC) Antenna, with Ferrite, 34.39mm by 46.10mm by 0.27mm

Rectangular Near Field Communication (NFC) Antenna, with Ferrite, 15.00mm by 25.00mm by 0.27mm

I also have wired U.FL connectors (150mm long) from unused WiFi antennas.

My question is, can I just solder the coax wires to the antenna, or do I need to match the impedance at the connection?


#2

I soldered the coax directly to the antenna and it is working great.