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The Role of Fluoropolymers in Micro Coaxial Cables: Why PTFE and FEP Dominate - Micro Coaxial Cable factory-(FRS)

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Meta Description:‌ Explore the chemistry behind PTFE and FEP—materials that make micro coax ideal for 40GHz applications.
‌Article Content:‌
‌Why Fluoropolymers?‌
‌Low Dielectric Loss‌: PTFE’s εᵣ=2.1 vs. PVC’s εᵣ=3.0 reduces signal attenuation by 30% at 40GHz.
‌Thermal Stability‌: FEP handles 200°C in engine bay sensors.
‌Molecular Structures‌
‌PTFE‌: C₂F₄ chains resist chemical corrosion from jet fuel.
‌PFA‌: Combines PTFE’s performance with melt-processability for tight jackets.
‌Case Study: 5G Small Cells‌
‌Problem‌: PVC-insulated cables failed at 28GHz due to heat.
‌Solution‌: Switched to PTFE micro coax, achieving 0.3dB/m loss.

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