Rectifier Design Challenges for Wireless Energy Harvesting/Wireless Power Transfer Systems: Broadening Bandwidth and Extended Input Power Range

RF-based wireless energy harvesting (WEH) and wireless power transfer (WPT) are gaining attention due to their capability of powering various sensors and devices. A low-power device can be fed wirelessly by capturing ambient RF energy through a WEH system. In the case of a high-power device, a WPT system can provide the required amount of power using intentional RF sources.