Vinstronics phase-stable flexible RF cable structure for precision microwave interconnects

18 GHz Stranded-Core Extreme High-Voltage Phase-Stable Low-Loss RF Cable W76D

P/N: W76D

  • Stranded core for dynamic RF routing
  • Extreme high-voltage structure for power paths
  • Phase-stable transmission for precision systems
  • Low PIM design for cleaner signals
  • Built for flexible defense interconnects
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Engineering Note
The W76D is an 18 GHz stranded-core extreme high-voltage phase-stable low-loss flexible RF coaxial cable designed for precision microwave interconnects, avionics routing, phased array radar, ECM systems, and dynamic RF assemblies where phase consistency, voltage withstand, low PIM behavior, and mechanical flexibility are required. Its silver-plated stranded copper wire inner conductor improves dynamic flexibility and fatigue resistance compared with solid-core constructions, while the 7.65 mm gray FEP jacket, LD PTFE dielectric, silver-plated copper strip inner shield, and silver-plated copper braid outer shield support stable microwave signal transmission. The cable combines DC–18 GHz operating capability, <750 PPM phase stability, 2500 V.DC dielectric withstand voltage, -155 dBc low PIM performance, >90 dB shielding effectiveness, and an extended -55 °C to +165 °C temperature range for dynamic phase-critical RF interconnect applications.

Technical Specifications

Cable Name W76D
Product Type Stranded-Core Extreme High-Voltage Phase-Stable Low-Loss Flexible RF Coaxial Cable
Cable Structure 5-layer phase-stable RF cable with stranded inner conductor and gray FEP jacket
Operating Frequency DC–18 GHz
Cut-off Frequency 18 GHz
Impedance 50 ± 1 Ω
Velocity of Propagation 83%
Shielding Effectiveness >90 dB
Phase Stability <750 PPM @ -55 °C to +85 °C
Low PIM Performance -155 dBc
Dielectric Withstanding Voltage 2500 V.DC
Static Bending Radius 38 mm [1.496 in]
Dynamic Bending Radius 76 mm [2.992 in]
Weight 0.12 kg/m [0.0806 lbs/ft]
Temperature Range -55 to +165 °C [-67 to +329 °F]
Inner Conductor Silver-plated stranded copper wire, 2.39 mm [0.094 in]
Dielectric Low Density PTFE, 6.25 mm [0.246 in]
Inner Shield Silver-plated copper strip, 6.49 mm [0.256 in]
Outer Shield Silver-plated copper wire braiding, 7.06 mm [0.278 in]
Jacket FEP / Gray, customizable, 7.65 mm [0.301 in]
Attenuation 16.7 dB/100m @1 GHz; 23.8 dB/100m @2 GHz; 29.3 dB/100m @3 GHz; 42.1 dB/100m @6 GHz; 48.9 dB/100m @8 GHz; 55.0 dB/100m @10 GHz; 61.7 dB/100m @12.4 GHz; 70.7 dB/100m @16 GHz; 75.3 dB/100m @18 GHz
Average Power 1.604 kW @1 GHz; 1.125 kW @2 GHz; 0.913 kW @3 GHz; 0.637 kW @6 GHz; 0.548 kW @8 GHz; 0.487 kW @10 GHz; 0.435 kW @12.4 GHz; 0.379 kW @16 GHz; 0.356 kW @18 GHz

Target Applications

Avionics RF Routing
Suitable for avionics assemblies where phase stability, voltage withstand, and dynamic cable flexibility are required.

Phased Array Radar
Supports radar systems where phase consistency, low-loss transmission, and stable shielding are critical.

ECM Systems
Fits electronic countermeasure systems requiring shielded, phase-stable microwave interconnects in harsh environments.

Dynamic Interconnects
Used for systems requiring frequent movement, flexible routing, and fatigue-resistant phase-stable RF cabling.

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