Dk/Df Database: Dielectric Constant & Loss Tangent for High-Speed PCB Materials
Dk (Dielectric Constant) and Df (Loss Tangent) are the two most critical dielectric parameters for modern high-speed PCB design, covering 5G communication, server high-speed backplanes, automotive radar, millimeter-wave RF circuits, and high-performance computing hardware. Using inaccurate or low-frequency-only Dk/Df values often leads to impedance deviation, signal delay mismatch, excessive insertion loss, eye diagram closure, and…