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A near-field focused planar reflectarray for spatial power combining and wireless power transmission is presented in this paper. The design procedure is proposed for near-field focused reflectarray with two feeds. The reflection phase characteristics of the proposed tri-dipole element is analyzed, which can be effectively used to design the near-field focused reflectarray working at 2.45 GHz. Numerical...
In this letter, a compact stacked shorted patch antenna is proposed using low temperature cofired ceramic (LTCC) technology. The height of the antenna is decreased due to the shorted pin, and this greatly improves the polarization performance of the antenna. At the same time, the height (about λ /25) of the antenna and its polarization state are determined by both the feeding and the shorting pin...
The data of welding seam width and height were obtained by TIG welding experiments. Two models were established using BP neural networks: One can predict the weld seam dimensions by inputting the welding parameters, and the other model can perform oppositely. Originally by inputting given welding seam dimensions to the model one, the welding parameters can be predicted. Then change the parameters...
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