Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors
In this work toward a sustainable operation of a self-powered wireless sensor, we investigated a multiband Wi-Fi/3G/4G/5G energy harvester based on a novel wideband circularly polarized antenna, a quadplexer, and rectifiers at four corresponding bands. This proposed antenna consisted of four sequent...
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MDPI AG
2021
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oai:doaj.org-article:d8c6b7e9239d45ee929798ed9a1bc4ea2021-11-11T19:19:52ZMultiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors10.3390/s212174111424-8220https://doaj.org/article/d8c6b7e9239d45ee929798ed9a1bc4ea2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7411https://doaj.org/toc/1424-8220In this work toward a sustainable operation of a self-powered wireless sensor, we investigated a multiband Wi-Fi/3G/4G/5G energy harvester based on a novel wideband circularly polarized antenna, a quadplexer, and rectifiers at four corresponding bands. This proposed antenna consisted of four sequentially rotated dual-dipoles, fed by a hybrid feeding network with equal amplitude and an incremental 90° phase delay. The feeding network was composed of three Wilkinson power dividers and Schiffman phase shifters. Based on the sequential rotation method, the antenna obtained a −10 dB reflection coefficient bandwidth of 71.2% from 1.4 GHz to 2.95 GHz and a 3 dB axial ratio (AR) bandwidth of 63.6%, from 1.5 GHz to 2.9 GHz. In addition, this antenna gain was higher than 6 dBi in a wide bandwidth from 1.65 GHz to 2.8 GHz, whereas the peak gain was 9.9 dBi. The quad-band rectifier yielded the maximum AC–DC conversion efficiency of 1.8 GHz and was 60% at −1 dBm input power, 2.1 GHz was 55% at 0 dBm, 2.45 GHz was 55% at −1 dBm, and 2.6 GHz was 54% at 0.5 dBm, respectively. The maximum RF–DC conversion efficiency using the wideband circularly polarized antenna was 27%, 26%, 25.5%, and 27.5% at −6 dBm of input power, respectively.Hong Quang NguyenMinh Thuy LeMDPI AGarticlecircularly polarized antennaSchiffman phase shiftersequential rotation feeding networkambient RF energy harvestingself-powered wireless sensorChemical technologyTP1-1185ENSensors, Vol 21, Iss 7411, p 7411 (2021) |
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DOAJ |
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DOAJ |
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EN |
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circularly polarized antenna Schiffman phase shifter sequential rotation feeding network ambient RF energy harvesting self-powered wireless sensor Chemical technology TP1-1185 |
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circularly polarized antenna Schiffman phase shifter sequential rotation feeding network ambient RF energy harvesting self-powered wireless sensor Chemical technology TP1-1185 Hong Quang Nguyen Minh Thuy Le Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors |
| description |
In this work toward a sustainable operation of a self-powered wireless sensor, we investigated a multiband Wi-Fi/3G/4G/5G energy harvester based on a novel wideband circularly polarized antenna, a quadplexer, and rectifiers at four corresponding bands. This proposed antenna consisted of four sequentially rotated dual-dipoles, fed by a hybrid feeding network with equal amplitude and an incremental 90° phase delay. The feeding network was composed of three Wilkinson power dividers and Schiffman phase shifters. Based on the sequential rotation method, the antenna obtained a −10 dB reflection coefficient bandwidth of 71.2% from 1.4 GHz to 2.95 GHz and a 3 dB axial ratio (AR) bandwidth of 63.6%, from 1.5 GHz to 2.9 GHz. In addition, this antenna gain was higher than 6 dBi in a wide bandwidth from 1.65 GHz to 2.8 GHz, whereas the peak gain was 9.9 dBi. The quad-band rectifier yielded the maximum AC–DC conversion efficiency of 1.8 GHz and was 60% at −1 dBm input power, 2.1 GHz was 55% at 0 dBm, 2.45 GHz was 55% at −1 dBm, and 2.6 GHz was 54% at 0.5 dBm, respectively. The maximum RF–DC conversion efficiency using the wideband circularly polarized antenna was 27%, 26%, 25.5%, and 27.5% at −6 dBm of input power, respectively. |
| format |
article |
| author |
Hong Quang Nguyen Minh Thuy Le |
| author_facet |
Hong Quang Nguyen Minh Thuy Le |
| author_sort |
Hong Quang Nguyen |
| title |
Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors |
| title_short |
Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors |
| title_full |
Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors |
| title_fullStr |
Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors |
| title_full_unstemmed |
Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors |
| title_sort |
multiband ambient rf energy harvester with high gain wideband circularly polarized antenna toward self-powered wireless sensors |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/d8c6b7e9239d45ee929798ed9a1bc4ea |
| work_keys_str_mv |
AT hongquangnguyen multibandambientrfenergyharvesterwithhighgainwidebandcircularlypolarizedantennatowardselfpoweredwirelesssensors AT minhthuyle multibandambientrfenergyharvesterwithhighgainwidebandcircularlypolarizedantennatowardselfpoweredwirelesssensors |
| _version_ |
1718431556525096960 |