Antenna Unit With Varying Line Widths For Wireless Power Transmission

The patent applies local quality by varying the line width of the conductor at different positions within the antenna pattern. The line width is increased at specific locations where resistance reduction is most beneficial for minimizing heat generation, while maintaining smaller dimensions in other areas to control overall antenna size. This localized optimization allows the antenna to reduce heat generation without proportionally increasing its overall volume.

The patent employs parameter changes by modifying the line width parameter of the conductor instead of changing the number of winding turns. By increasing the line width at strategic positions, the resistance value is reduced to minimize heat generation while maintaining the same number of winding turns, thereby preserving the required inductance level. This approach changes the physical dimension parameter (line width) rather than the topological parameter (number of turns).

The patent applies local quality by concentrating the increased line width modifications specifically within the wireless power transmission antenna pattern, rather than uniformly increasing the size of all antenna structures. This localized approach reduces resistance and heat generation in the WPT antenna while maintaining the compact overall size needed to preserve the performance of other combined antennas such as NFC and MST antennas.

The patent implements local quality by applying different line widths to different segments of the conductor trace. The manufacturing process uses variable line width patterns that are wider in regions where resistance reduction is prioritized and narrower in other regions. This approach reduces overall resistance and heat generation while maintaining a manageable manufacturing complexity through standardized PCB fabrication techniques that can accommodate variable trace widths.