40 GHz Phase-Stable Precision Test RF Coaxial Cable – CFT380

Phase-Stable 40 GHz Precision Test Cable for Measurement Confidence

Designed for laboratory metrology, the CFT380 RF coaxial cable combines a 40 GHz upper-frequency limit with a controlled cable geometry. Within the CFT380 raw coaxial cable configuration, the CFT design focus is phase-conscious measurement work, making controlled routing especially important after calibration or reference-plane setup. Quantitative comparison of the CFT380 coaxial cable with other Phase-Stable CFT Precision Test Cables models should be based on the endpoint loss, power, conductor, and mechanical data below.

Performance Inputs for Test-System Design

At the rated upper frequency of 40 GHz, specified attenuation is 2.205 dB/m and power handling is 0.074 kW. Electrical construction is based on a 1.02 mm silver plated copper center conductor and a 81% propagation-velocity specification. For the CFT380 RF cable, the 81% propagation value provides the basis for estimating electrical delay and timing skew over the required assembly length. Together, these values support link-loss, electrical-delay, and power-margin calculations for the CFT380 RF coaxial cable at the intended operating frequency.

Calibration Work That Depends on Phase Discipline

This parameter set makes the CFT380 coaxial cable suitable for engineering evaluation in high-frequency validation and phase comparison measurements, subject to assembly length, connector interface, and system-level derating. For the CFT380 coaxial cable, accordingly, the cable can be evaluated at component, assembly, and system level using traceable product-specific parameters. When alternatives to the CFT380 raw coaxial cable are required, additional construction and performance options are available in the Precision Test Coaxial Cables portfolio.

Mechanical Repeatability After Calibration

For routing and packaging, the relevant limits are 3.90 mm outside diameter, 19.00 mm static bend radius and 38.00 mm minimum dynamic bend radius, and -55 to +165 °C operating temperature. For the CFT380 raw coaxial cable, the FEP jacket must be considered in environmental, material-compatibility, and installation assessments. The 3.90 mm geometry of the CFT380 RF cable balances packaging efficiency with the conductor cross-section required by its electrical performance class. Compliance with these constraints helps protect impedance continuity and repeatability at the cable-to-connector transition associated with the CFT380 RF coaxial cable.

Mechanc Shanghai Information Technology Co., Ltd. documents the CFT380 RF coaxial cable with product-specific parameters so that RF engineers can evaluate the interconnect against system bandwidth, loss budget, power, thermal, and packaging requirements. Within the product portfolio, this configuration is designated as the CFT380 raw coax.