I am trying to make a LoRa board with an RFM95W module.
Using the calculator shown in the image below, I designed a 50 ohm impedance transmission line. I added options for both a monopole copper wire antenna and a proper U.Fl antenna. However, after further research I am unclear whether a wire antenna even needs the 50 ohm. Further, I am worried that if I end up going with the U.Fl, the board trace impedance will add with the connector impedance and create 100 ohms.
So do wire antennas need a 50 ohm transmission line? Will the impedance of a 50 ohm transmission line and a 50 ohm ufl antenna connector add to make 100 ohms in series?