Hello, I want to measure the impedence of PCB antenna designed for nRF52832 based board. I have the following quires.
- Is it required to isolate antenna from NRF52832 matching network to take measurement? My matching network contains shunt capacitor(0.8 pF) and series inductor(3.9 nH) as suggested in the datasheet .
2)Is it required to solder all the components on PCB board before taking impedance measurement?
3)How to decide whether the length of antenna should be increased or decreased to match the impedance to 50 ohm?