Leaky Cable Solution and Products

Leaky feeder solution is a type of radiating coaxial cable that transmits signals within specific frequency bands, providing continuous, stable, and controllable wireless coverage, especially suitable for confined or complex linear structures like tunnels and subways.

Industry Overview

Leaky cable for Tunnel solution

It is a systematic technology that uses specialized cables, which “leak” signals like an antenna, to achieve continuous and uniform wireless coverage inside tunnels.

Industry Challenges

Corporate Dimension

Global operations demand that companies enhance local service capabilities, cross-cultural management efficiency, and brand trust-building simultaneously to navigate diverse market differences.

Social Dimension

Public trust and public opinion risks have become critical variables. Enterprises must address technological biases and societal perception gaps while building social acceptance through transparent communication.

Political Dimension

The industry faces significant challenges from geopolitical and trade environments, requiring the construction of compliant and resilient global operations amid supply chain scrutiny, localization policies, and "de-risking" pressures.

Our Solution

Leaky cable for Tunnel solution

It is a systematic technology that uses specialized cables, which “leak” signals like an antenna, to achieve continuous and uniform wireless coverage inside tunnels.

MIMO 5G leaky cable

This is a technical solution characterized by uniform signal coverage with no blind spots, inherent full-band compatibility, and a stable, high-quality transmission rate.

Cross-polarized leaky cable

The product achieves breakthrough performance at the physical layer by applying **high-purity polarization and multi-stream isolation technology**. Its core lies in utilizing a design with **high polarization purity and a high cross-polarization ratio** to precisely control the polarization state of electromagnetic waves. This effectively separates multiple data streams over the air interface, increasing data transmission rates by 21% to 75% across different frequency bands.

Value Contained

Creating a Zero-Blind-Spot, Highly Reliable Converged Communication Network

By leveraging the linear continuous radiation characteristics of leaky feeder cables, this solution achieves seamless, stable multi-band signal coverage in traditionally challenging areas such as tunnels and mines. A single cable can simultaneously support public networks, private networks, and IoT signals, fundamentally eliminating the need for redundant multi-system deployments. It provides a "signal lifeline" for critical operations like train dispatching and emergency communications, significantly enhancing network security and operational reliability.

Reducing Lifecycle Costs and Engineering Complexity

In long-distance linear scenarios, the leaky feeder solution offers substantial savings in equipment, installation, and long-term maintenance costs compared to distributed antenna systems. Its "deploy once, evolve forever" feature minimizes the frequency and difficulty of future renovations. The system can flexibly support future communication bands through upgrades at both ends, helping customers achieve optimal total cost of ownership and a sustainable network evolution path.

Enabling Operational Intelligence and User Experience Enhancement

Stable and continuous wireless coverage provides the foundational support for digital applications such as train-to-ground communication, smart sensing, and high-precision positioning. While ensuring safe dispatching and efficient management, it directly improves the communication experience for passengers and staff in enclosed spaces. This solution builds an expandable IoT platform for smart rail transit, intelligent mining, and similar scenarios, creating long-term value across safety, efficiency, and service dimensions.

Successful Cases

Successful Case of Beijing New Airpot Line

The new “asymmetric slot” dual-polarization MIMO technology developed by ZTT has successfully reduced the traditional installation spacing of the leaky cable from 1m to 30cm, solving the problem of limited installation space of leaky cable in the metro, and has been identified as the international leading level.

Successful Case of metro 5G signal coverage

ZTT Innovatively has developed a 5/4 new 5G leaky cable, which solves the major technical problem of the compatibility of the signals of the three major operators in 5G signal transmission, which is a breakthrough innovation and provides a real and reliable reference for the subsequent 5G construction of the subway in China and even around the world.

Successful Cases of Highway Tunnel

This solution enables ultra-wideband signal coverage over extensive transmission distances, significantly lowering carrier construction costs. Test results show field strength inside the train cabin reaching -75dB, while signal levels measured with the phone extended outside the window achieve -70dB, fully meeting all technical requirements for reliable connectivity.