40 GHz Flexible High-Temperature Phase-Stable RF Coaxial Cable – CFU260

Compact 40 GHz Flexible Cable for Thermally Demanding Phase-Critical Links

The CFU260 RF coaxial cable addresses the signal-path requirements of environmental test equipment, offering characterized operation through 40 GHz. Within the CFU260 raw coaxial cable configuration, the CFU series combines flexible routing with a construction selected for phase-sensitive operation in equipment exposed to changing thermal conditions. Quantitative comparison of the CFU260 coaxial cable with other Flexible Phase-Stable Coaxial Cables models should be based on the endpoint loss, power, conductor, and mechanical data below.

Temperature-Cycled Links with Tight Space Limits

These characteristics support the use of the CFU260 coaxial cable in temperature-cycled electronics and airborne RF systems, provided the final assembly design respects the stated bend and power limits. For the CFU260 coaxial cable, the available data allow RF engineers to assess the cable against link margin, phase delay, thermal exposure, and packaging constraints. When alternatives to the CFU260 raw coaxial cable are required, additional construction and performance options are available in the Flexible Coaxial Cables portfolio.

Phase-Conscious Electrical Characteristics

The band-edge specification at 40 GHz defines 4.440 dB/m attenuation together with 0.014 kW power capacity. The transmission line incorporates a 0.50 mm silver plated copper center conductor, while the specified velocity of propagation is 81%. For the CFU260 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 CFU260 RF coaxial cable at the intended operating frequency.

Flexible Routing Through Temperature Cycles

The cable envelope measures 2.17 mm in diameter; the minimum static radius is 13.00 mm and 27.00 mm minimum dynamic bend radius, and the specified service range is -55 to +125 °C. During installation of the CFU260 raw coaxial cable, routing should remain within the specified bend geometry throughout forming, connectorization, and installation. The compact 2.17 mm profile of the CFU260 RF cable facilitates constrained routing without relaxing the specified bend limits. Compliance with these constraints helps protect impedance continuity and repeatability at the cable-to-connector transition associated with the CFU260 RF coaxial cable.

Mechanc Shanghai Information Technology Co., Ltd. documents the CFU260 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 CFU260 raw coax.