PICA white paper
Introduction to High-Frequency Signal Insertion Loss
Understand the material and conductor effects that shape high-speed signal performance.
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PDFSignal integrity fundamentals
Protect signal integrity
Reduce loss across yourhigh-speed signal path.
Written by Ryon Hu, this technical guide explains why signal frequencies above 50 MHz demand closer attention to dielectric loss, conductor loss, copper roughness, skin effect, and material selection.
- 01Understand the sources of loss
Separate dielectric loss from conductor loss caused by surface roughness and skin effect.
- 02Select better materials
Explore low-Dk/Df laminates and RTF, VLP, or HVLP copper foils for high-speed designs.
- 03Evaluate real performance
Learn how frequency-domain analysis, Fourier transforms, and Delta-L testing measure transmission loss.
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