Using leaky coaxial cables for signal coverage in tunnels results in better performance and more uniform signal distribution.
Due to the special structure of tunnels, such as enclosed spaces and metal walls, conventional wireless signals are extremely vulnerable to blocking, reflection, and attenuation in tunnels. This results in poor communication signal quality and limited coverage, seriously affecting the communication needs of people in tunnels and the communication support for traffic safety, such as emergency rescue communication and vehicle positioning.
In the tunnel environment, the leaky coaxial cable is laid along the tunnel wall. The signal source (such as the base station signal) is connected to one end of the cable, and the signal will propagate along the cable and be uniformly radiated into the tunnel space through the leaky part, thus achieving comprehensive signal coverage of the tunnel. Compared with traditional antennas, leaky coaxial cable can provide a more uniform and stable signal distribution, reducing signal blind spots and signal fluctuations.
Leaky coaxial cables (leaky feeders) offer distinct advantages for tunnel signal coverage in professional wireless communication systems. Their unique radiating structure allows for controlled and uniform propagation of radio frequency (RF) signals along the cable length, minimizing signal fading and dead zones typically caused by tunnel geometry and obstructions. By integrating with the tunnel's infrastructure, leaky cables provide consistent signal strength and coverage homogeneity, ensuring reliable connectivity for critical applications such as railway communications and public safety networks.
In the context of tunnel signal coverage, the use of traditional antennas and active antennas has long faced significant challenges. The signal distribution achieved by these means often proves to be uneven, resulting in inconsistent communication quality within the tunnel. Moreover, the complex environment inside tunnels makes it extremely difficult to obtain a stable power supply for these devices. However, our innovative tunnel signal coverage solution centered around leaky cables
and related accessories such as connectors, couplers, power dividers, and POI offers a revolutionary approach. Our leaky cable system is engineered to provide a more uniform and reliable signal throughout the tunnel, eliminating the patchy coverage issues associated with traditional antennas. Additionally, it is designed to be more power-efficient and easier to integrate into the existing tunnel infrastructure, overcoming the power-acquisition hurdles that have plagued previous solutions.


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