Wireless Power Antenna Molecules for Uniform Large-Area Charging
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Solution Overview
Problem
Existing wireless power transfer systems face challenges in achieving uniform power transmission over large areas, especially when the receiver is in motion, due to variations in the strength of the emitted field, which can limit operational efficiency and user experience.
Innovation Solution
The development of molecule-based transmission antennas with a source-repeater configuration and internal repeaters, which utilize a series connection of antenna molecules to enhance metal resiliency and uniformity ratio, while minimizing the use of conductive materials and reducing manufacturing complexity, along with sensitive demodulation circuits for accurate in-band communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional antenna designs are used for large area power transmission, then the charge area can be extended, but field uniformity deteriorates due to variations in emitted field strength
Solution Approach 1:
The antenna is divided into multiple antenna molecules arranged in a grid pattern, where each molecule consists of coil atoms that can be independently configured. This segmentation allows each unit to contribute to a collectively uniform field distribution across the large charge area, resolving the contradiction between area extension and field uniformity.
Solution Approach 2:
The patent implements source-repeater configurations and internal repeaters at specific locations within the antenna structure. These local enhancements create regions of optimized field distribution that collectively achieve uniformity across the entire large charge area, addressing the field strength variation problem while maintaining extended coverage.
2Manufacturing precision
If more conductive materials are used to enhance uniformity ratio, then field uniformity improves, but cost and environmental impact increase
Solution Approach 1:
By segmenting the antenna into molecules and coil atoms, the patent achieves uniformity through geometric arrangement and electrical connection topology rather than increasing material quantity. The series and parallel connections of coil atoms create uniform field distribution using minimal conductive material.
Solution Approach 2:
The patent optimizes the electrical characteristics by configuring coil atoms in series or parallel connections within molecules, and arranging molecules in specific grid patterns. These parameter changes in electrical connection topology achieve uniformity ratio enhancement without increasing material quantity.
3Reliability
If antenna molecules are connected in series, then metal resiliency improves, but manufacturing complexity increases
Solution Approach 1:
The antenna is segmented into modular molecules that can be manufactured independently and then assembled. Each molecule is a self-contained unit with series-connected coil atoms, making the overall manufacturing process more manageable and less complex while maintaining the metal resiliency benefits of series connections.
Solution Approach 2:
Coil atoms are nested within antenna molecules, which are in turn arranged in grid patterns to form the complete antenna. This nested structure allows series connections to be implemented at the molecule level, simplifying the overall manufacturing complexity while achieving metal resiliency.
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
These systems achieve enhanced uniformity of power transmission over large areas, maintaining performance in the presence of metallic environments and reducing costs and environmental impact, while enabling efficient and accurate data communication regardless of the relative positions of the sender and receiver.
Implementation Method 1
inductive and/or resonant inductive wireless power transfer, which occurs when magnetic fields created by a transmitting element induce an electric field and, hence, an electric current, in a receiving element
Implementation Method 2
The operating frequency may be selected for a variety of reasons, such as, but not limited to, power transfer characteristics, power level characteristics, self-resonant frequency restraints
Data Source
AI summary
An antenna, configured for wireless power transfer, is disclosed includes an antenna molecule, the antenna molecule formed from a continuous conductive wire, the first continuous conductive wire extending from a beginning molecule terminal to an ending molecule terminal, the continuous conductive wire formed to define a plurality of coil atoms. The plurality of coil atoms includes a source coil atom in electrical connection with the beginning molecule terminal and the ending molecule terminal and one or more connected coil atoms in electrical connection with the source coil atom, each of the one or more connected coil atoms having, at least, an outermost turn. Each of the source coil atom and the one or more connected coil atoms partially overlap with one of the source coil atom or one of the one or more connected coil atoms.