Signal quality performance by PCB materials

Henry Sang Henry Sang

Henry Sang

Technical Manager at SAFE-PCB Canada Inc.

发布日期: 2019年4月24日
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PCB materials by a number of important material parameters are related to the performance of high-speed signal quality, such as dielectric constant (Dk) and dissipation factor (Df).

Lower dielectric constant(Dk) allows rapid signal propagation. Dielectric constant(Dk) of a material is important for signal integrity and impedance considerations.

Lower Df of materials has a direct impact on signal transmission loss. 

Dedicated high-speed laminates(like Rogers RO4350) have better properties at higher frequencies than FR4 does.

Enclosed figure is the simulation of insertion loss comparison by 10" 50ohm transmission line at different Df.

Safe-PCB is a manufacturer of high-quality Printed Circuit Boards and it specializes in the production of prototype and medium-volume production. We provide wide range of manufacturing options, include Rogers RO4350B, RO4835 and RO4003. We are happy to discuss with customers about PCB design guideline and PCB manufacturing.

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