Micro Coaxial Cable factory-(FRS)

How to Avoid Signal Loss in Long-Run Micro-Coaxial Installations - Micro Coaxial Cable factory-(FRS)

Micro Coaxial Cable-Micro Coaxial Cable factory-(FRS)-FRS

 

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Understanding the Challenge

Micro-coaxial cables (often called “micro-coax”) are essential for high-frequency signal transmission in medical devices, aerospace systems, and 5G infrastructure. However, signal degradation over long distances (typically >10 meters) remains a top concern for engineers. Key culprits include:

  • Skin effect (high-frequency current crowding near conductor surfaces)
  • Dielectric absorption (signal energy lost in cable insulation)
  • Impedance mismatches (causing reflections at connection points)

6 Proven Solutions

1. Choose Low-Loss Materials

Opt for cables with:
✔ PTFE (Teflon) insulation (0.0003 loss tangent vs. 0.02 for PVC)
✔ Silver-plated conductors (reduces skin effect vs. bare copper)

2. Active Signal Boosting

Deploy these at 15m intervals:

  • RF amplifiers (for analog signals)
  • Repeaters/redrivers (for digital protocols like LVDS)

3. Precision Termination

Use VSWR <1.5:1 connectors:

  • SMA for ≤6 GHz
  • 2.92mm for ≤40 GHz
    Pro Tip: Apply torque wrenches to achieve manufacturer-specified tightness (usually 5-8 in-lbs).

4. Path Optimization

  • Keep bends ≥10× cable diameter
  • Separate power/signal lines by ≥3× cable OD
  • Avoid parallel runs longer than 30cm with AC lines

5. Environmental Shielding

For harsh environments:

  • Double-shielded (foil + braid) designs
  • IP67-rated connectors in humid areas

6. Test & Validate

Critical checkpoints:

  • TDR (Time Domain Reflectometry) for impedance verification
  • VNA (Vector Network Analyzer) for S-parameters
  • Bit Error Rate Testing (BERT) for digital systems

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