This article outlines the principles and potential of leaky feeder radio systems in military and security applications. Traditionally used in civilian contexts like mining and tunnel operations, these systems offer a hybrid solution, blending the mobility of wireless communication with the robustness of wired infrastructure.
Recent innovations open up opportunities for deploying leaky feeder technology in mission-critical defence and security operations, particularly in environments where traditional wireless systems fall short.
Understanding Leaky Feeder Radio Systems
Leaky feeder systems use coaxial cables with intentional slots or gaps to allow radio signals to “leak” out, creating a distributed antenna. This enables continuous coverage along the length of the cable, ideal for enclosed, subterranean or interference-heavy environments where conventional radio signals degrade.
These systems support bi-directional communication and can operate across VHF, UHF and microwave frequencies. However, legacy systems have been limited by:
- Low data throughput
- Dependence on Wi-Fi connectivity
- Centralised architectures
- Unsuitability for real-time or unmanned operations
Defence and Security Applications
Leaky feeder radio systems offer several key advantages over traditional wireless systems, especially in tough environments like tunnels, underground facilities or areas with heavy interference.
- Reliable Coverage: Leaky feeders provide continuous signal coverage along the length of the cable. Unlike wireless systems, there’s no need to carefully place multiple antennas to avoid dead zones.
- Strong Signal Through Obstacles: Signals travel along the cable and can easily pass through walls, tunnels or other barriers. Wireless systems, by contrast, often struggle when there’s no clear line of sight between devices.
- Resistant to Interference: Leaky feeder systems are much more robust in areas with high electronic interference or potential jamming. Wireless systems are more exposed to signal disruption and require careful frequency planning.
These benefits make leaky feeder systems a strong candidate for secure, dependable communications in defence and security settings.
Introducing Rinicom’s NetWave Mesh Radio for Leaky Feeder Systems
Rinicom has developed a new version of its NetWave ad-hoc mesh radio, tailored for leaky feeder deployment in defence and security settings. It incorporates:
- AI-controlled signal adaptivity
- Advanced waveforms and MAC layer enhancements
- Support for centralised and decentralised mesh architectures
- Reduced RF signature for stealth
- Compatibility with software-defined radio (SDR) platforms
- MIMO and channel aggregation techniques specific to leaky feeder topologies
These capabilities enable the secure, low-latency and flexible communication demanded by modern defence operations.
Conclusion
With the integration of advanced technologies, leaky feeder radio systems can evolve into a strategic asset for defence and security. Their ability to function in complex, constrained and contested environments makes them suitable for:
- Urban combat zones
- Underground facilities
- Border surveillance
- Electronic warfare scenarios
- Emergency response coordination
Rinicom remains committed to supporting defence innovation through the development of bespoke, high-performance communication systems.
About Rinicom Ltd
Rinicom Ltd is a UK-based SME headquartered in Lancaster, specialising in communications and detection systems for defence, law enforcement, and critical infrastructure. Since 2002, Rinicom has combined innovative R&D with field-proven technology and has twice received the Queen’s Award for Enterprise.
To view the full White Paper click here.