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Copper Foils for High-Frequency Circuit Materials – 6-layer board uses a RO4350B + IT-180A hybrid PCB Design

Markenname: Rogers Modellnummer: RO4350B+IT-180A

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Copper Foils for High-Frequency Circuit Materials – Selection Guide for Low-Loss PCB Design Q: Why does copper foil selection matter for high-frequency PCBs? A: The surface roughness of copper foil is a critical factor affecting signal integrity in high-frequency designs, particularly above 1 GHz. Roughness forces high-frequency current—which concentrates near the conductor surface due to the skin effect—to travel a longer effective path, converting electromagnetic energy

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