ENGINEERING ANSWER
Wireless prototypes may benefit from controlled RF construction when matching, feed loss or repeatability is important. Many short, lower-frequency paths can also meet their requirements with other materials, so compare against the actual budget.
What to decide before release
Start with the radio reference design and antenna environment. Use the same stackup assumptions as the matching network, then verify any changes. Keep digital return currents and switching power away from sensitive RF interfaces.
Checks to put in your design brief
- Follow the radio vendor’s interface guidance
- Check antenna installation
- Measure the complete prototype
Important distinction
Material selection should solve an identified problem rather than serve as a substitute for measurement.
Sources & basis
Material facts follow the cited source. Design checks are preliminary guidance, not supplier process instructions.