A high-frequency printed circuit board (PCB) can be a great solution if you need to incorporate specialized signal requirements into your electronic components and products. This frequency range of 500MHz to 2GHz is perfect for high-speed designs, microwave, mobile, and RF applications.

This type of PCB can provide faster signal flow rates which are essential for complex electronic switches and other components. However, it requires the use of specialized materials to achieve the high frequency. Any changes in the Er value of these materials can impact the impedance of the board.

Therefore, PCB designers often prefer to use Rogers’ dielectric material due to its reduced signal loss, lower cost of circuit fabrication, and better suitability for fast-turnaround prototyping applications, due to its lower dielectric loss. In addition to selecting the appropriate PCB material and determining the correct value of the Er, designers must consider other parameters like conductor width and spacing, substrate constant, etc.

These parameters must be precisely specified and implemented with the highest level of process control to ensure optimal performance.