Microwave Link
Also known as: Microwave Radio Link
Definition
A microwave link is a directional wireless communications path that uses microwave frequencies to connect two fixed endpoints. It typically forms a transport link for backhaul, intersite connectivity, or critical infrastructure networking.
Key Points
- A microwave link carries traffic over a directional radio path.
- It is commonly used for backhaul and site-to-site connectivity.
- Line of sight and link budget are central design constraints.
- Weather and interference can materially affect reliability.
- Microwave links are important in telecommunications, enterprise, and broadcast networks.
Concept
In practice, microwave links are engineered as highly directional RF paths with carefully selected antennas, frequencies, and link margins. The route must be close to line of sight, and the design must account for terrain, weather, interference, and equipment alignment.
Microwave links are attractive because they can be deployed faster than fiber and can reach places where trenching is impractical. The tradeoff is that they are more exposed to environmental conditions and require more RF discipline than a cable-based transport path.
Explainer
The main constraint in microwave links is propagation and alignment. Small changes in antenna pointing, obstruction, or weather can reduce margin enough to affect service. This is why link budget, path analysis, and maintenance discipline are critical to the design.
A second limitation is that microwave transport is still spectrum transport. Even though it is point-to-point, it must coexist with other users and comply with allocation rules. That means performance is shaped by both physical path quality and regulatory or coordination constraints.
Across ConnectedEarth sectors, microwave links are widely used for telecommunications backhaul, enterprise site interconnect, broadcast contribution, maritime shore links, and remote industrial sites. They are one of the most practical ways to build a fast fixed wireless transport path.