... of shape, line-width/line-space ratio, reference layer design and as-covered solder resist ink were designed to measure the insertion loss (S₂₁) in high-speed PCB. Findings The study showed that the insertion loss (S₂₁) of straight, meander, snake-shaped and wavy microstrip lines...

... of ultra high speed digital bus architectures, PCB fabricators will appreciate the need to add an understanding of the drivers of insertion loss (base material loss tangent data, foil roughness and copper cross sectional areas) to their existing experience of architectures with minimal losses. This means...