Phase-Stable 18GHz Ultra Flexible Precision Test Coaxial Cable with FEP Jacket – Model CFT780M

Phase-Stable, Ultra-Flexible Precision Cable for 18 GHz RF and Microwave Testing

The CFT780M ultra-flexible, low-loss precision test coaxial cable is designed for high-accuracy RF measurements up to 18 GHz . Featuring a large-diameter multi-fiber stranded silver-plated copper inner conductor, LD-PTFE dielectric, and reinforced shielding structure, the CFT780M provides outstanding electrical stability, excellent amplitude uniformity, and rugged mechanical performance. Its low attenuation and strong phase consistency under motion make it ideal for laboratory-grade S-parameter testing, calibration environments, and dynamic test setups requiring repeatable accuracy.

Stable Electrical Performance for Precision Measurements

The CFT780M coaxial cable maintains a precise 50 Ω ±1.1 Ω impedance and delivers ≤±3° phase stability at 18 GHz with amplitude variation held within ±0.1 dB . Temperature-induced phase drift remains below 750 PPM across −55 °C to +85 °C, ensuring consistent results during long-duration test cycles. Its low-loss performance—down to 0.753 dB/m at 18 GHz—supports high-fidelity signal transmission, metrology-grade VNA work, and precision RF validation where measurement repeatability is critical.

Rugged FEP Jacket and Strong Shielding Integrity

Encased in a durable 7.80 mm FEP jacket, the CFT780M offers exceptional mechanical life, heat resistance, and chemical durability suitable for continuous laboratory use . Its multi-layer construction—including PTFE reinforcement and dual silver-plated copper shielding—achieves >90 dB shielding effectiveness to protect against electromagnetic interference. With a 40 mm single-bend radius and 80 mm repeated-bend radius, the cable maintains stable performance in motion-intensive environments such as probe stations, switching systems, and flexible test fixtures.

Applications Requiring Ultra-Flexible, Phase-Stable Performance

The CFT780M phase-stable coaxial cable is optimized for precision 18 GHz measurements, RF calibration, radar module testing, instrumentation setups, and environments where cable flexibility and electrical repeatability are essential. Its combination of low loss, rugged design, and excellent stability under movement makes it suitable for both development labs and production test lines.

Manufactured by Mechanc Shanghai Information Technology, the CFT780M precision test coaxial cable delivers long-term reliability, excellent shielding, and stable electrical performance for RF and microwave applications up to 18 GHz. REACH & RoHS compliant.

Explore the full Low-Loss Phase-Stable CFT Series.