Ultra Low Loss 67 GHz Precision Test Coaxial Cable with PFA Jacket – Model CFS220U

Extended-Frequency Precision Cable for Advanced RF Measurement

The CFS220U ultra-low-loss precision test coaxial cable extends the performance of the CFS220 with a wider frequency range and enhanced phase stability. Designed for precision testing up to 67 GHz with a 50 Ω impedance, it ensures ultra-stable, low-loss performance in high-frequency environments such as vector network analyzer (VNA) calibration, radar validation, and 5G component testing. Fully REACH and RoHS compliant, it meets international standards for quality, safety, and environmental responsibility.

High-Frequency Electrical Performance and Phase Accuracy

The CFS220U coaxial cable employs a solid silver-plated copper inner conductor and LD-PTFE dielectric to achieve precise impedance matching and wideband phase consistency. Attenuation remains exceptionally low—just 0.637 dB/m @ 1 GHz, 4.44 dB/m @ 40 GHz, and 5.93 dB/m @ 67 GHz—while amplitude variation stays within ±0.1 dB @ 18 GHz. Phase deviation remains ≤ ±3° @ 18 GHz and ±5° @ 26.5 GHz, with temperature-induced drift held under 750 PPM between –55 °C and +85 °C, ensuring highly repeatable test results across thermal variations.

Durable PFA Jacket and Superior Shielding Efficiency

Encased in a 2.20 mm PFA jacket, the CFS220U cable offers excellent thermal stability, abrasion resistance, and flexibility for precision test setups. Dual silver-plated copper shields deliver > 90 dB shielding effectiveness, minimizing electromagnetic interference and maintaining clear signal integrity in high-frequency applications. The compact, flexible geometry allows stable impedance retention even after repeated motion or bending, supporting long-term reliability in laboratory or production environments.

Available Variants for Specific Test Applications

The CFS220 Series includes multiple configurations tailored to specific testing requirements:

• CFS220 — the standard model offering reliable low-loss performance up to 40 GHz.
• CFS220U — the extended-frequency version reaching 67 GHz, offering enhanced phase stability and flexible mechanical design.

These options allow RF engineers to select the optimal cable for their system’s frequency range and mechanical layout while maintaining consistent Mechanc quality and electrical performance.

Applications Requiring Wideband Precision and Repeatability

The CFS220U ultra-low-loss coaxial cable is ideal for precision metrology, broadband microwave calibration, and advanced 5G or radar signal characterization. Its extended bandwidth, low attenuation, and stable phase response make it the perfect solution for laboratories and production facilities demanding the highest degree of measurement repeatability. For more precision-grade models, explore the Precision Test Coaxial Cable Series by Mechanc.

Manufactured by Mechanc Shanghai Information Technology Co., Ltd., the CFS220U ultra-low-loss precision test coaxial cable offers extended frequency capability, superior phase accuracy, and verified REACH and RoHS compliance—ensuring long-term precision for advanced RF and microwave testing systems.

Explore the full Ultra-Low-Loss CFS Series.