Inspec keywords: telecommunication power supplies; energy harvesting; Zigbee

Other keywords: electric field energy harvesting; wireless sensor node; conductor tube; self-sustaining power management circuit; voltage 75 kV; noncontact energy harvesting apparatus; storage capacitor; sensor module; power transmission lines; Zigbee-based sensor node; earth surface; low-power comparator

Subjects: Power convertors and power supplies to apparatus; Radio links and equipment; Energy harvesting