Vinstronics L53S stranded-center low-loss flexible RF cable with blue FEP jacket for 26.5 GHz microwave interconnects

26.5 GHz Stranded-Center Low-Loss RF Cable L53S

P/N: L53S

  • Stranded center for flexible cable routing
  • Low-loss path for 26.5 GHz interconnects
  • Blue FEP jacket for protected installation
  • Dual shielding for low-PIM RF paths
  • Suitable for VNA and module jumpers
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Engineering Note
The L53S is a 26.5 GHz stranded-center low-loss flexible RF coaxial cable designed for VNA test jumpers, microwave module interconnects, base-station RF paths, and demanding defense, avionics, ECM, and EW environments. Its silver-plated stranded copper inner conductor improves routing flexibility and installation handling compared with solid-center conductor cables, while the silver-plated surface supports efficient microwave current flow. The cable combines a 5.30 mm blue FEP jacket, LD PTFE dielectric, dual silver-plated shielding, -155 dBc low PIM performance, and DC–26.5 GHz RF capability for flexible system-level microwave interconnects.

Technical Specifications

Cable Name L53S
Product Type Stranded-Center Low-Loss Flexible RF Coaxial Cable
Cable Structure 5-layer flexible RF cable with silver-plated stranded center conductor and blue FEP jacket
Operating Frequency DC–26.5 GHz
Cut-off Frequency 26.5 GHz
Impedance 50 ± 1 Ω
Velocity of Propagation 76%
Shielding Effectiveness >90 dB
Dielectric Withstanding Voltage 1000 V.DC
Low PIM Performance -155 dBc
Static Bending Radius 26 mm [1.024 in]
Dynamic Bending Radius 53 mm [2.087 in]
Weight 0.075 kg/m [0.0504 lbs/ft]
Temperature Range -55 to +165 °C [-67 to +329 °F]
Inner Conductor Silver-plated stranded copper, 1.44 mm [0.057 in]
Dielectric Low Density PTFE, 4.10 mm [0.161 in]
Inner Shield Silver-plated copper strip, 4.30 mm [0.169 in]
Outer Shield Silver-plated copper wire braiding, 4.85 mm [0.191 in]
Jacket FEP / Blue, customizable, 5.30 mm [0.209 in]
Attenuation 30.4 dB/100m @1 GHz; 43.5 dB/100m @2 GHz; 53.8 dB/100m @3 GHz; 77.6 dB/100m @6 GHz; 90.6 dB/100m @8 GHz; 102.2 dB/100m @10 GHz; 115.0 dB/100m @12.4 GHz; 141.3 dB/100m @18 GHz
Average Power 0.821 kW @1 GHz; 0.573 kW @2 GHz; 0.464 kW @3 GHz; 0.321 kW @6 GHz; 0.275 kW @8 GHz; 0.244 kW @10 GHz; 0.217 kW @12.4 GHz; 0.177 kW @18 GHz

Target Applications

VNA and RF Test Jumpers
Suitable for flexible cable assemblies used on lab benches and production test stations where handling stability matters.

Microwave Module Interconnects
Supports compact RF subsystem routing inside microwave modules, enclosures, and system-level interconnect assemblies.

Base-Station RF Paths
Used for wireless infrastructure assemblies requiring low-PIM transmission and flexible routing across 26.5 GHz RF paths.

Defense and ECM / EW Systems
Fits shielded microwave interconnects in defense, avionics, ECM, and EW systems requiring flexible low-loss RF cabling.

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