Some videos of myself playing with VNA in the lab measuring a microwave resonance using a room temperature 3D cavity
https://www.youtube.com/playlist?list=PLIWwgYtvRAcojr4XLVimSo3IBJyHSLoE-
Some fun things to learn:
- How to properly set the electrical length setting of your VNA to compensate a running phase
- How to make bad cable resonances using an SMA tee
- Example of how it is difficult to determine the internal Q with fano resonances
- How this gets even trickier if you are less coupled (which surprised me)
- How replacing the tee with a directional coupler helps tremendously
Useful to combine with this post:
Crosstalk and "Fano lineshapes" in microwave resonator measurements
Enjoy!
Cheers,
Gary