40 GHz Flexible High-Temperature Phase-Stable RF Coaxial Cable – CFU400

Phase-Stable 40 GHz Flexible Cable with Balanced Power Capability

With an upper operating frequency of 40 GHz, the CFU400 RF coaxial cable is intended for airborne RF systems where predictable interconnect behavior is required. Within the CFU400 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 CFU400 coaxial cable with other Flexible Phase-Stable Coaxial Cables models should be based on the endpoint loss, power, conductor, and mechanical data below.

Balancing Bend Radius and Power Capacity

The mechanical specification combines a 3.35 mm profile with a 20.00 mm minimum static radius and 40.00 mm minimum dynamic bend radius and qualified operation from -55 to +125 °C. During installation of the CFU400 raw coaxial cable, routing should remain within the specified bend geometry throughout forming, connectorization, and installation. The 3.35 mm geometry of the CFU400 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 CFU400 RF coaxial cable.

Electrical Reference Points for Integration

For link-budget calculations at the 40 GHz operating limit, use 2.791 dB/m attenuation and 0.075 kW power handling. A 0.91 mm silver plated copper inner conductor establishes the conductive path, with a documented propagation velocity of 82%. For the CFU400 RF cable, the 82% 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 CFU400 RF coaxial cable at the intended operating frequency.

Phase-Critical Equipment with Moderate Power Demand

For phase-sensitive instrumentation or environmental test equipment, the CFU400 coaxial cable provides the quantitative inputs required for insertion-loss, delay, thermal, and mechanical integration reviews. For the CFU400 coaxial cable, its product-level parameters provide a practical basis for cable selection, assembly design, and technical verification. When alternatives to the CFU400 raw coaxial cable are required, additional construction and performance options are available in the Flexible Coaxial Cables portfolio.

Mechanc Shanghai Information Technology Co., Ltd. documents the CFU400 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 CFU400 raw coax.