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2024-06-20
A Miniaturized Lens Unit Based on Current Path Extension as a Wireless Power Transfer Medium at 2.45 GHz
By
Progress In Electromagnetics Research C, Vol. 144, 107-115, 2024
Abstract
A novel miniaturized lens unit at 2.45 GHz is presented in this manuscript. This unit is formed by a modified Malta cross and an ordinary cross, with a unit period of 0.2λ0, where λ0 denotes the unit wavelength. The ordinary cross unit creates a pathway for current between two units. Accordingly, it increases the current path and reduces the unit volume to a quarter of its original size. By adjusting the length of the Malta cross arm, it is possible to achieve the transmission phase at 2.45 GHz within a range of 0-360˚. Moreover, an improved PSO algorithm is used to optimize the phase of array elements. The optimization process is able to achieve a phase-shifting of ±18˚ within the range of 3.28λ0. Simulation and measurement results show that the miniaturized lens unit can be used in the wireless energy transmission system.
Citation
Xingyue Liu, Zhiwei Liu, Cheng Qiu, Zehua Luo, and Yuxin Deng, "A Miniaturized Lens Unit Based on Current Path Extension as a Wireless Power Transfer Medium at 2.45 GHz ," Progress In Electromagnetics Research C, Vol. 144, 107-115, 2024.
doi:10.2528/PIERC24041301
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