RF energy harvester optimized for wireless sensor network in launcher application

The following paper present an RF harvesting solution enable to supply an UHF RFID based tag sensor. The solution is integrated in a wireless sensor network (WSN) specially designed for launcher applications. In way of purpose a complete autonomous sensor network and drastically lower the risk of explosion or contamination caused by chemical battery, the harvesting powered solutions make sense. With the low-power required by the sensor tag (<50 μJ), the RF harvesting design allows supply over 5 meters with an adaptive power management over the RF energy harvested. The purpose design includes a dual input module in order to optimize efficiency over the range of operating.