| Autor: |
Jeong-Min Woo, Wonseob Lim, Jongseok Bae, Chan Mi Song, Kyoung-Joo Lee, Sang-Hwa Yi, Youngoo Yang |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 9, Pp 98348-98360 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2021.3095538 |
| Popis: |
In this study, a rectenna is adopted in a microwave-based wireless power transfer system to rectify the received radio frequency (RF) to DC power. Each rectenna comprises a DC-DC converter at the DC output port to ensure a stable power supply and a Schottky diode for the DC-combining network. The results indicate that the RF-DC conversion efficiencies of the rectifier circuit and $4\times 1$ rectenna were 71% and 71.2% when the unit-cell RF input levels were 19 dBm and 19.6 dBm, respectively. Furthermore, the DC output levels of a $4\times8$ rectenna with and without the DC-DC converter were 28 V and 30 V, respectively, when the unit-cell RF input level was 20.2 dBm. Additionally, the RF-DC conversion efficiencies were 52.6% and 59.9% with and without the DC-DC converter, respectively. Thus, we experimentally verified that the Schottky diode combined with the DC-DC converter at the DC output port can increase the DC power combining level, making it suitable as an extendable array rectenna system. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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