What’s the difference between RF and microwave circuit board?

The main difference between RF circuit boards and Microwave PCBs is in the radio frequency in which they operate.

Microwave PCBs are classified as any RF circuit board operating above 2GHz.

In general terms, the PCB industry considers an RF circuit board to be any high frequency PCB that operates above 100MHz.Within the radio frequency class, anything above 2GHz is a Microwave PCB.

RF circuit boards and Microwave PCBs are used for communication signals in any application that requires receiving and transmitting radio signals. For example, some common applications are cell phones and radar installations.