ENGINEERING ANSWER
RO4350B can be considered for RF circuitry in wireless infrastructure, but “5G” is not one frequency or one board requirement. Sub-6 GHz and millimeter-wave designs have very different loss, launch and tolerance challenges.
What to decide before release
Define the band, power, channel architecture and environmental needs before choosing the laminate. Compare the complete RF path and validate the construction with hardware. At higher frequencies, investigate materials and foil systems suited to the actual loss budget.
Checks to put in your design brief
- State the operating bands
- Separate RF and digital requirements
- Validate the assembled signal path
Important distinction
A material name alone does not establish suitability for every 5G frequency or antenna architecture.
Sources & basis
Material facts follow the cited source. Design checks are preliminary guidance, not supplier process instructions.