GOBOOST Weekly Knowledge Blog - 7/8 Leak Cable

What is a leak cable? What is the price/performance ratio?

What kind of scenarios is it suitable for compared to conventional antennas?

GOBOOST will introduce you with 7/8 leaky cable.

What is 7/8 leaky cable?

7/8 leaky cable is a leaky coaxial cable (Leaky Coaxial Cable) is usually referred to as a leaky cable or leaky cable, its structure is basically the same as the ordinary coaxial cable, by the inner conductor, insulating medium and the outer conductor open with periodic slots in the outer conductor of the three parts. Electromagnetic waves in the 7/8 leaky cable in the longitudinal transmission at the same time through the slot hole to the outside world to radiate electromagnetic waves; outside the electromagnetic field can also be induced through the slot hole to the leakage of the internal cable and transmitted to the receiving end.

Simply put: 7/8 leaky cable is a cable and an antenna.

7/8 leaky cable and ceiling antenna application scenario

 

7/8 leaky cable signal leakage uniform but small strength, through the wall effect is weak, so in the use of the situation, such as: walls, columns, partitions and other obstacles to the signal of the greater impact, so to ensure that the use of the place is not any obstruction.

Ceiling antenna although the coverage area signal distribution is not uniform, but the spatial attenuation as long as in a certain range, regardless of the signal strength, can meet the business requirements, in the antenna direct coverage of the regional signals are relatively strong, strong penetration, by the obstacles to the impact of small.

7/8 leaky cable is suitable for tunnels, corridors, subways, such as simple environment, no wall obstruction area, while the ceiling antenna can be applied to most of the scenes.

Cost-effective

7/8 leaky cable is more costly than feeder cable, but it is more suitable for straight long and unobstructed environments, with uniform signal coverage, wide frequency, uniform and stable field radiation, high compression resistance, high tensile strength, the price is relatively expensive, but when multiple systems (water level sensors, fans, pumps, survey robots, etc.) are introduced into tunnels at the same time, the overall cost can be greatly reduced.

Comprehensive comparison

7/8 leaky cable coverage in a specific environment, signal uniformity is better and no switching problems, but the cost is too high, only in some specific environments (similar to the tunnel environment), while the ordinary antenna is much wider.