Antenna Coil Windings With Sharp Edges for Link Coupling Efficiency
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Solution Overview
Problem
Current wireless power transfer technologies face a bottleneck in achieving high power transfer link efficiency without increasing design complexity and cost, despite various attempts to alter coil winding distances, materials, frequency, and voltage/current ratings.
Innovation Solution
The proposed antenna design incorporates a plurality of coil windings with sharp shapes, such as edges, spikes, or cavities, strategically positioned to enhance RF signal travel and increase link coupling efficiency, with simulations showing improvements of up to 3 dB in efficiency depending on shape size and placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional coil windings are used with standard geometries, then the antenna structure remains simple and cost-effective, but the link coupling efficiency remains suboptimal
Solution Approach 1:
The patent applies local quality by introducing sharp geometric features (edges, spikes, cavities) only at specific locations on the coil windings rather than modifying the entire structure. These localized sharp features create concentrated electromagnetic field effects that improve coupling efficiency without requiring a complete redesign of the antenna geometry, thus maintaining overall structural simplicity while achieving performance enhancement
2Loss of energy
If sharp shapes are added to coil windings to enhance RF signal travel, then link coupling efficiency increases, but manufacturing complexity increases
Solution Approach 1:
The patent employs parameter changes by modifying the geometric parameters of the coil windings - specifically introducing sharp features with controlled dimensions (edge lengths, spike heights, cavity depths) and positions. By optimizing these geometric parameters, the patent achieves improved RF signal propagation and coupling efficiency while maintaining compatibility with standard manufacturing processes for coil windings
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design effectively increases link coupling efficiency without enlarging coil windings or increasing voltage or current, facilitating better wireless power transfer for diverse applications including mobile charging, automotive charging, and medical implants.
Implementation Method 1
The proposed antenna design incorporates a plurality of coil windings with sharp shapes, such as edges, spikes, or cavities, strategically positioned to enhance RF signal travel and increase link coupling efficiency
Data Source
AI summary
Disclosed is an antenna for enhancing link coupling efficiency in a power transmission. The antenna may comprise a plurality of coil windings layered across each other. It may be noted that each coil winding may be deployed with a plurality of edges. It may be understood that an edge is separated with another edge at a predetermined distance on each coil winding. It may be noted that the edge and the another edge is a subset of the plurality of edges.