18 GHz Economy RF Precision Test Cable J48

P/N: J48

  • For cost-conscious production test systems
  • Solid PTFE supports economical signal paths
  • Blue FEP jacket protects test routing
  • Linear phase supports basic compensation
  • Rated to 18 GHz for RF testing
Engineering Note
The J48 is an 18 GHz economy RF precision test cable designed for high-volume production lines, automated test equipment, and general RF testing where cost control, repeatable routing, and physical durability are key selection factors. Its construction uses a silver-plated copper inner conductor, solid PTFE dielectric, silver-plated copper strip inner shield, aluminum foil interlayer, silver-plated copper wire braiding, and a blue FEP jacket. The cable supports frequent production-line handling while providing 70% velocity of propagation, >90 dB shielding effectiveness, and ±1.0°/GHz mechanical stationary phase for economical 18 GHz RF test links.

Technical Specifications

Cable Name J48
Product Type Economy RF Precision Test Cable
Cable Structure Flexible precision test cable with blue FEP jacket
Operating Frequency 18 GHz
Cut-off Frequency 40 GHz
Impedance 50 ± 1 Ω
Velocity of Propagation 70%
Shielding Effectiveness >90 dB
Dielectric Withstanding Voltage 100 V.DC
Mechanical Stationary Phase ±1.0°/GHz
Static Bending Radius 24 mm [0.945 in]
Dynamic Bending Radius 48 mm [1.890 in]
Weight 0.058 kg/m [0.0390 lbs/ft]
Temperature Range -55 ~ +125 ℃ [-67 ~ +257 ℉]
Inner Conductor Silver-plated copper, 0.94 mm [0.037 in]
Dielectric Solid PTFE, 2.98 mm [0.117 in]
Inner Shield Silver-plated copper strip, 3.25 mm [0.128 in]
Interlayer Aluminum foil, 3.40 mm [0.134 in]
Outer Shield Silver-plated copper wire braiding, 3.95 mm [0.156 in]
Jacket FEP / Blue, customizable, 4.88 mm [0.192 in]
Attenuation 40.0 dB/100m @1 GHz; 153.5 dB/100m @10 GHz; 224.0 dB/100m @18 GHz
Average Power 0.488 kW @1 GHz; 0.127 kW @10 GHz; 0.087 kW @18 GHz

Target Applications

Mass Production Line Testing
Suitable for high-volume RF testing where economical cable cost, repeatable handling, and basic phase behavior are important.

Automated Test Equipment
Supports ATE platforms that require flexible test interconnects with dynamic bending capability and stable system routing.

18 GHz Component Verification
Used for cost-conscious microwave component verification and general RF production testing up to 18 GHz.

System Integration Test Benches
Fits complex RF test benches where durable cable routing, economical links, and repeatable connections are required.

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