1. Efficient rectifier with wide input power range for 5G applications.
- Author
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Ben Yamna, Mounira, Dakhli, Nabil, Sakli, Hedi, and Aoun, Mohamed
- Subjects
ENERGY harvesting ,IMPEDANCE matching ,MICROSTRIP transmission lines ,SCHOTTKY barrier diodes ,5G networks ,ELECTRIC current rectifiers ,RADIO frequency - Abstract
This article presents three efficient rectifiers for radio frequency energy harvesting (RFEH) systems operating at the fifth generation (5G) band (3.5 GHz). Each rectifier operates at various input power levels (high, low, and across a wide power range). The high and low-power rectifiers feature a single serial topology using HSMS-2860 and SMS-7630 Schottky diodes, respectively, along with microstrip lines to implement the input and output filters and the impedance matching network. At an radio frequency (RF) power level of 15 dBm, the high-power rectifier harvests 67.4% to direct current (DC) power with a 300 Ω load resistor and an output voltage of 2.5 V. The low-power rectifier achieves its maximum power conversion efficiency (PCE) at -2 dBm, reaching 45% efficiency with a 1,200 Ω load. The rectifier with a extended input power range comprises two branches of subrectifiers functioning at both high and low power levels. Depending on the power level, the considered subrectifier harvests radio frequency power into DC power, while the other subrectifier is deactivated. Across a power span of 32.5 dB (ranging from -13 to 19.5 dBm), the rectifier maintains an efficiency above 30%. The proposed rectifiers are efficient and suitable for implementation in 5G-enabled RFEH systems. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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