I've been struggling on how to design (and develop in practice) an impedance matching network with some traces/tracks/paths (whatever you wanna call it) and some connectors in between. So here is the architecture:
Antenna (50 Ohm) + path (50 Ohm) + Matching network + path & SMA connector (?) + SMA connector & path (?) + Rectifier & load (Z_L known)
The perfect matching would be if right after the last component of the matching network comes the first component of the rectifier, but it is not the case by far, since there are paths and connectors in between.
- Should I count the impedance of the load starting from the connector? --> then... probably there are reflections between the connector&path and the rectifier.
- Should I characterize the rectifier with a TRL calibration (having out path and connector) and count it as part of the matching?? --> I don't have a clue how to do the matching like that... with ADS or directly with the Smith Chart I haven't arrived that far.
- Looks like it is not possible and what I have to do is include the rectifier in the PCB1 and the rest of the load in the PCB2... But again... even the small path connecting the last component from the matching and the first from the rectifier could have an impact. How could I include this into it? (it would be the same case as the current one though).
- Any other solution? :C
If somebody could throw some light there, I'd be eternally grateful.