A 5G Wireless Event-Driven Sensor Chip for Online Power-Line Disturbances Detecting Network in 0.25 μm GaAs Process

This article presents an event-driven sensor chip for 5G wireless online power line disturbance monitoring network. The proposed event-driven sensor can directly sense the power line disturbance and send out alarm signals without complex, analog, and digital signal processing. Thus, the response time to the voltage or current disturbance can be greatly reduced. This article presents passive and active modeling, circuit design, simulation and measurement results. The results show that the sensor can provide different frequency outputs that are related to power line voltage disturbance levels. The output frequency of the sensor is 26.4-27.5 GHz that is suitable for the 5G wireless sensor network. The proposed chip is fully integrated in GaAs process, achieving maximum 13 dBm output power with power added efficiency of 25%. With the proposed chip, a power line voltage disturbances system is demonstrated and the proposed chip can realize signal communication with 3 km distance.