Ultra Low Loss 40 GHz Precision Test Coaxial Cable with FEP Jacket – Model CFS280

Ultra-Low-Loss Precision Cable for 40 GHz High-Frequency RF Measurements

The CFS280 ultra-low-loss precision test coaxial cable is engineered for demanding RF and microwave applications requiring stable electrical performance up to 40 GHz :contentReference[oaicite:1]{index=1}. Its silver-plated copper conductors, LD-PTFE dielectric, and tightly controlled geometry ensure low attenuation, strong phase consistency, and minimal signal drift during high-frequency characterization, calibration, and automated testing workflows. With excellent temperature stability and repeatable behavior under mechanical stress, the CFS280 provides the reliability required for modern metrology-grade setups.

Stable Electrical Performance for High-Precision Measurements

The CFS280 coaxial cable integrates a high-density LD-PTFE dielectric and precision silver-plated copper conductors to maintain excellent impedance uniformity at 50 Ω ± 1.1 Ω :contentReference[oaicite:2]{index=2}. It delivers ≤ ±3° phase stability at 18 GHz and ≤ ±5° at 26.5 GHz, with amplitude stability better than ±0.1 dB. Temperature-induced phase variation remains below 750 PPM across −55 °C to +85 °C, ensuring dependable long-term measurement repeatability. Attenuation remains low across the band, including 3.191 dB/m at 40 GHz, making it suitable for extended high-frequency test lines.

Durable Construction and Shielding Integrity

Encased in a 2.80 mm FEP jacket, the CFS280 provides strong resistance to heat, abrasion, and chemical exposure, enabling reliable performance in both laboratory and field environments :contentReference[oaicite:3]{index=3}. Its dual shielding system—silver-plated copper ribbon plus braided silver-plated copper—achieves excellent isolation with >90 dB shielding effectiveness, minimizing electromagnetic interference. The cable maintains stable characteristics during motion, supported by a 14 mm single-bend radius and 28 mm repeated-bend radius, ensuring long service life under frequent repositioning.

Applications Requiring Low Loss and High Stability

The CFS280 ultra-low-loss coaxial cable is ideal for high-accuracy VNA measurements, microwave device evaluation, radar module verification, ATE systems, and calibration environments requiring consistent phase, amplitude, and impedance performance up to 40 GHz. It offers an excellent balance of flexibility, environmental robustness, and electrical precision for both R&D and production testing workflows.

Manufactured by Mechanc Shanghai Information Technology, the CFS280 ultra-low-loss precision test coaxial cable delivers metrology-grade consistency, durability, and accuracy for advanced RF and microwave measurement applications. REACH & RoHS compliant.

Explore the full Ultra-Low-Loss CFS Series.

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