| A Compact High Efficient Voltage Doubler Constructed by Inverse Class-F Architecture for Wide Band 5G Energy Harvesting |
| Paper ID : 1033-ICEEM2023 (R2) |
| Authors: |
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Mohamed Elmansi *1, Marwa Mansour2, Nessim Mahmoud1, Mustafa Abd Elnaby1 1Electronics and Electrical Communications Engineering Dept., Faculty of Engineering, Tanta University, Tanta, Egypt. 2Microelectronics Dept., Electronics Research Institute (ERI), Cairo, Egypt. |
| Abstract: |
| A compact, high-efficient, inverse class-F voltage doubler (VD) is introduced for wide band 5G energy harvesting (EH) and wireless power transfer (WPT) applications. The proposed voltage doubler is suitable for the 2.45 GHz Wi-Fi band and compatible with a band from 2.1 to 3 GHz in the fifth generation. The suggested VD is constructed by inverse class-F configuration with harmonic suppression technique. The proposed class-F-1 VD is built by open-circuiting the second harmonic voltage component and short-circuiting the third harmonic voltage component. The inverse class-F configuration is realized by a combination of transmission lines and discrete lumped components to compact the size. Then, the voltage and current waveforms across the diodes are reshaped to be a half-sine wave and a square wave respectively, preventing the overlap between the two waveforms and enhancing the conversion efficiency. The suggested structure gives a peak efficiency of 80.7% at 12 dBm with a frequency of 2.45 GHz. Moreover, a fractional bandwidth of 24.5% corresponding to 600 MHz of bandwidth is obtained at a conversion efficiency of 60%. While the output saturated DC voltage is 6 V with load terminal resistance equal to 2.45 kΩ. Finally, the overall dimensions of the proposed design are 12.9 × 6.4 mm2. |
| Keywords: |
| Inverse class-F, RF Energy harvesting (RFEH), Voltage doubler, Harmonic termination, Wireless power transmission (WPT) |
| Status : Paper Accepted |
