RF Coaxial Cable: The Vital Artery for High-Frequency Signal Transmission
In modern wireless communication systems, RF coaxial cables play a critical role as invisible information highways, carrying electromagnetic signals from MHz to GHz frequency bands. Statistics show that a single 5G base station requires over 500 meters of various coaxial cables, while satellite communication systems demand precision RF lines with transmission loss below 0.1dB/m. With the development of 6G technology, the global RF coaxial cable market is projected to grow at a CAGR of 7.2%.
Core Structure Analysis
Triple-Layer Precision Design
Inner Conductor:
7-strand silver-plated copper wire (0.5-5mm diameter)
Surface roughness ≤0.8μm (reducing skin effect loss)
Dielectric Layer:
Foamed polyethylene (εr=1.25) or PTFE (εr=2.1)
Up to 85% air content (lowering dielectric loss)
Outer Shield:
Three-layer composite (aluminum foil + copper braid + outer jacket)
Shielding effectiveness ≥100dB@6GHz
Key Performance Comparison
Parameter Standard Coax Premium Coax Military-Grade Coax
Frequency Range 0-3GHz 0-40GHz DC-67GHz
VSWR ≤1.5 ≤1.2 ≤1.1
Phase Stability ±5°/m ±1°/m ±0.3°/m
Bend Radius 10×OD 5×OD 3×OD
Operating Temp -40~85℃ -55~125℃ -65~200℃
Five Major Applications
5G Communication Systems
Low-loss cables for AAU units (≤0.3dB/[email protected])
Flexible coax for Massive MIMO antenna arrays
Aerospace
Phase-matched cables (Δφ≤0.5°@10m)
Radiation-resistant special coax (withstands 100kGy)
Medical Equipment
Non-magnetic coax for MRI systems (μr≈1.0)
Ultra-thin coax for surgical robots (OD 1.2mm)
Automotive Electronics
Microwave coax for 77GHz radar (cutoff frequency 110GHz)
High-voltage coax for EV chargers (10kV rated)
Test & Measurement
Calibration-grade coax (VSWR≤1.05)
Low-noise cables (noise figure
Introduction: The Invisible "Information Highway"
In modern wireless communication systems, RF coaxial cables play a critical role as invisible information highways, carrying electromagnetic signals from MHz to GHz frequency bands. Statistics show that a single 5G base station requires over 500 meters of various coaxial cables, while satellite communication systems demand precision RF lines with transmission loss below 0.1dB/m. With the development of 6G technology, the global RF coaxial cable market is projected to grow at a CAGR of 7.2%.
Core Structure Analysis
Triple-Layer Precision Design
Inner Conductor:
7-strand silver-plated copper wire (0.5-5mm diameter)
Surface roughness ≤0.8μm (reducing skin effect loss)
Dielectric Layer:
Foamed polyethylene (εr=1.25) or PTFE (εr=2.1)
Up to 85% air content (lowering dielectric loss)
Outer Shield:
Three-layer composite (aluminum foil + copper braid + outer jacket)
Shielding effectiveness ≥100dB@6GHz
Key Performance Comparison
Parameter Standard Coax Premium Coax Military-Grade Coax
Frequency Range 0-3GHz 0-40GHz DC-67GHz
VSWR ≤1.5 ≤1.2 ≤1.1
Phase Stability ±5°/m ±1°/m ±0.3°/m
Bend Radius 10×OD 5×OD 3×OD
Operating Temp -40~85℃ -55~125℃ -65~200℃
Five Major Applications
5G Communication Systems
Low-loss cables for AAU units (≤0.3dB/[email protected])
Flexible coax for Massive MIMO antenna arrays
Aerospace
Phase-matched cables (Δφ≤0.5°@10m)
Radiation-resistant special coax (withstands 100kGy)
Medical Equipment
Non-magnetic coax for MRI systems (μr≈1.0)
Ultra-thin coax for surgical robots (OD 1.2mm)
Automotive Electronics
Microwave coax for 77GHz radar (cutoff frequency 110GHz)
High-voltage coax for EV chargers (10kV rated)
Test & Measurement
Calibration-grade coax (VSWR≤1.05)
Low-noise cables (noise figure
Tel: +86-13712235188 +86-13728244346
Address:101, Building 2, No. 281, Houjie Section, Guantai Road, Houjie Town, Dongguan, Guangdong, China