Control impedance in PCBs The electrical properties of PCB traces are crucial for signal integrity, with the impedance being influenced by trace width, thickness, and the dielectric constant of the board material. Impedance mismatches due to changes in materials or geometry can cause signal reflections, leading to performance issues such as low gain, noise, and errors. To ensure controlled impedance, PCB manufacturers often use test coupons with the same layer and trace construction as the PCB itself. These coupons allow accurate impedance testing without affecting the actual board's layout. SysPCB offers impedance control PCBs with precise tolerances, ensuring reliable performance for high-frequency applications.
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