Abstract
This paper introduces a novel compact ultralightweight multiband RF energy harvester fabricated on a paper substrate. The proposed rectenna is designed to operate in all recently released LTE bands (range 0.79-0.96 GHz; 1.71-2.17 GHz; and 2.5-2.69 GHz). High compactness and ease of integration between antenna and rectifier are achieved by using a topology of nested annular slots. The proposed rectifier features an RF-to-dc conversion efficiency in the range of 5%-16% for an available input power of -20 dBm in all bands of interest, which increases up to 11%-30% at -15 dBm. The rectenna has been finally tested both in laboratory and in realistic scenarios featuring a superior performance to other state-of-the-art RF harvesters on flexible substrates.
Original language | English |
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Pages (from-to) | 1-14 |
Number of pages | 14 |
Journal | IEEE Transactions on Microwave Theory and Techniques |
Early online date | 20 Jul 2017 |
DOIs | |
Publication status | E-pub ahead of print - 20 Jul 2017 |
Keywords
- Broadband antennas
- conformal antennas
- Copper
- copper adhesive laminate
- energy harvesting
- flexible electronics
- Internet of Everything
- Internet of Things (IoT)
- multiband rectifier
- Radio frequency
- Rectennas
- rectennas
- Slot antennas
- slot antennas
- Substrates
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering