Self-monitoring goniometer antennas

Goniometer antennas could soon have embedded monitoring capabilities to make sure that their performance continues to align with factory specifications even after the devices have been installed on a drone or other vehicle.

The system, developed under a PhD research project at Leti, uses a network of photodiodes to probe the antennas’ immediate environment. The diodes’ backscattered signals are picked up by the goniometer antennas and, if the antenna response is compromised due to temperature, aging, or false echoes, for example, the signals will deviate from the factory reference, triggering an alert.

A patent application has been filed for the innovative system, which could be used by regulators to enhance their surveillance of the frequencies used by mobile telephone and other operators.

Contact: serge.bories@cea.fr

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