Frequency Selective Surface Structures-Based RF Energy Harvesting Systems and Applications: FSS-Based RF Energy Harvesting Systems
Farheen Fatima, M. Jaleel Akhtar, Omar M. Ramahi
Abstract
With the recent developments in the field of ultralow-power wearable and portable electronic gadgets and wireless sensor networks, the number of devices and sensors in a system has increased significantly <xref ref-type="bibr" rid="ref1" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[1]</xref> . The emergence of the Internet of Things has added many additional devices and sensors connected via the Internet <xref ref-type="bibr" rid="ref2" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[2]</xref> , <xref ref-type="bibr" rid="ref3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[3]</xref> . It is also anticipated that the number of connected devices will continue to increase in the coming years <xref ref-type="bibr" rid="ref4" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[4]</xref> . Currently, batteries remain the only source of power for these interconnected devices and systems.