High frequency circuits are structures built with special high frequency materials. Nowadays applications up to approx. 77 gigahertz are possible. Execution can be as a double-sided circuit board or as multilayer. Material combinations with FR4 can also be implemented. You can find approved high frequency materials under Materials and processes.
NOTE: The structures and design rules illustrated here are the most frequently occurring layer structures. We are also happy to manufacture cards for you with deviating requirements.