Leaky Feeder 1/2″ Radiating Coaxial Cable

1/2″ leaky Feeder Cable is a type of RF coaxial cable which has gaps or slots in its outer conductor to allow the radio signal to leak into or out of the cable along its entire length so the cable functioning as extended antennas. It is suitable for wireless communication in narrow or long, curvy surroundings, such as mining, in buildings, tunnels, subways, high-speed trains, etc.

Specification

Specifications - Construction

Inner Conductor Copper-clad aluminum wire Φ 4.8 mm
Dielectric Cellular polyethylene Φ 12.1 mm
Outer Conductor Slotted copper tube Φ 13.2 mm
Jacketing Black, halogen-free fire-retardant thermoplastic /
Black, halogen-free polyethylene (optional)
Φ 15.8 mm
Marking Trademark, cable type, manufacture week, year, batch number and meter mark


Specifications - Electrical Characteristics at +20°C

Characteristic Impedance 50 ± 1 Ω
VSWR ≤1.3
Attenuation See table below
Velocity Factor 0.88
Capacitance 76 pF/m
Peak RF Voltage Rating 6 kV

 

Frequency (MHz) Attenuation (dB/100m) Coupling Loss (50%/95%,dB) Frequency (MHz) Attenuation (dB/100m) Coupling Loss (50%/95%,dB)
800 7.3 79/84 2200 16.7 67/71
900 7.9 76/82 2400 17.6 67/72
1800 14.3 67/70 2600 18.6 65/69
1900 15 67/71 2700 18.9 66/70
2000 15.7 68/72

* Attenuation and Coupling Loss values are typical at ambient temperature +20°C.

 

Specifications - Mechanical Characteristics

Weight 210 kg/km
Maximum Pulling Force 1000 N
Minimum Bending Radius Single Bending: 125mm, Repeated Bending: 350 mm
Operating Temperature Range -40 ~ +70 °C