As thousands of new satellites continue launching into orbit, scientists say a major bottleneck is no longer in space—it is on the ground.
Researchers at University of California San Diego have developed a new type of satellite ground station that could dramatically improve how data is received from satellites while making the system cheaper and easier to expand.
Instead of relying on giant satellite dishes, the new approach uses many small flat antenna panels placed across rooftops, towers, and buildings. Working together, these panels can handle far more satellite traffic than traditional systems.
The project, called ArrayLink, was developed by engineers from the university’s Jacobs School of Engineering and Qualcomm Institute. The research will be presented at the IEEE International Conference on Computer Communications in Tokyo.
Today’s satellite networks are growing rapidly. Companies such as SpaceX already operate thousands of satellites, while other companies including Amazon and OneWeb are expanding their own constellations. These satellites support internet access, navigation, emergency communication, Earth imaging, and many other services.
But every bit of data sent from space must still pass through a ground station before reaching users on Earth.
Current ground stations usually depend on large parabolic dishes. These dishes are powerful but have several limitations. They can normally track only one satellite at a time and must physically rotate to follow fast-moving satellites across the sky. This movement wastes time and limits how much data the system can handle.
The UC San Diego team wanted a system that could scale more easily and cost much less to deploy.
Their solution uses phased-array antennas. These are flat electronic panels made from many tiny antenna elements that can steer signals electronically without moving parts.
Instead of building one giant phased array, which would be expensive and difficult, the researchers used many smaller laptop-sized panels connected together.
The scientists found that combining about 16 small panels could already approach the performance of a large dish while remaining much cheaper and easier to install.
The biggest breakthrough came when the team discovered how to send multiple streams of data at the same time.
Normally, if antenna panels are too close together, they all receive nearly identical signals. But when the researchers spread the panels farther apart—roughly one kilometer apart—each panel began receiving slightly different versions of the signal.
This created a special “near-field” effect that allowed the system to separate multiple data streams simultaneously from the same satellite.
Under ideal conditions, the system could support up to four parallel information streams at once, increasing total data throughput to as much as three times higher than a traditional satellite dish.
Another advantage is practicality. The system can be built using commercially available hardware and could even be installed on existing 5G cell towers.
Because cell towers already have internet connections, power, and leased locations, they could potentially become future satellite ground stations without requiring entirely new infrastructure.
The researchers are continuing to improve ArrayLink and plan to begin satellite testing in the future. If successful, the technology could help support the next generation of global satellite internet and communication networks as space becomes increasingly crowded.
