Why Do High-Frequency Applications Prefer Specialized MCPCB?

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RF power amplifiers operating above 6GHz suffer significant losses on standard PCBs—dielectric loss tanδ exceeds 0.02 for FR-4 at microwave frequencies. Metal core boards with low-loss laminates (tanδ <0.004) become essential for 5G infrastructure and radar systems. Yet, few mcpcb manufacturers master mixed dielectric stackups combining Rogers materials with aluminum cores.

High-frequency MCPCB production requires extreme precision: differential pair skew <5ps/meter, controlled impedance ±5%, and buried capacitors with self-resonant frequencies >10GHz. Leading factories use CO₂ lasers for impedance tuning, achieving ±2% deviation across 50Ω lines. Silver immersion gold replaces ENIG to minimize skin effect losses at microwave frequencies. Compared to traditional punch tools, UV laser drilling creates a cleaner via walls, reducing signal reflection by 15%.

HUIHE PCB&PCBA’s RF-grade MCPCB features dual-layer shield canopies grounded through stitching vias (<0.3mm diameter). Their designs incorporate edge-mounted choke,s suppressing common-mode noise without adding discrete components. For satellite communicators, they offer space-qualified variants passing ECSS-Q-ST-70-51C radiation testing. Learn how metal core PCB fabrication enables 77GHz automotive radar performance through stripline geometries.
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