Tuning U.FL / Antenna Cable Assemblies
fff created the topic: Tuning U.FL / Antenna Cable Assemblies
Cellular, Wi-Fi, GNSS and Bluetooth radios are available as FCC-certified modules with a U.FL connector that connect to an external antenna through a cable assembly. Why do you never see an antenna matching network in finished products that use this approach?
N10sive replied to the topic: Tuning U.FL / Antenna Cable Assemblies
If you are talking about a module, it is most likely the supplier assumes a 50Ohm line and that the U.Fl SMT connector is 50Ohms.
In a finished product with an antenna, the manufacturer has most likely "tuned" the antenna to the desired frequency without using a matching network.
In the case of cellular, it is also difficult to have a desired matching network, for a multi-band antenna etc. There are also less stringent parameters specifications for VSWR in cellular, at least in the lower bands.
This is also due to cost, efficiency, space-constraints, etc.
Sign in or register to add a comment.
Add a Comment
About Our Site
Biological Effects and Applications
Computer Aided Design
Emerging Applications and Technology
Filters and Passives
MMIC and RFIC
Packaging and Materials
Sources and Receivers
Test and Measurement
Microwave s11 simulation of a 3d model LC resonator and antenna
Calculate antenna gain from measured data
Earthing quality measurement with an antenna
radiated emission from power cable
Terms of Service
Useful Hints and Tips
Created with PlushForums
© 2021 Microwaves 101 Discussion Board