Let me apologize if my yesterday's post was not clear. The pictures I posted are actually the result of the recommendation you gave me. I took a 30cm RG-316 cable I have and calibrated at the very end. Then I made a 6in RG-174 from that end that connect on the pcb. I added a 760ps delay to compensate for the RG-174. Tonight I will try to shorten it as much as I can and some measurements.
The radio transceiver I intend to use has a 50ohm output. The feedline I created on the pcb should also be a 50 ohm line. I made the pcb fabricated with controlled impedance. This way, the fab house provides the dielectric constant of the pcb stack up and provide trace width recommandation to achieve the desired impedance, which I followed. The antenna I chose is also 50ohm.
I will follow up.
Thanks again
