Antenna Array Power Wave Pocketing for Wireless Charging
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Solution Overview
Problem
Conventional wireless charging systems are limited in their ability to transmit energy over meaningful distances and do not effectively manage power wave production or track devices in three-dimensional spaces, failing to adapt to user mobility and ensuring compliance with electromagnetic field exposure standards.
Innovation Solution
The system generates and transmits power waves that converge at predetermined locations to form pockets of energy, using sensor data and heat-map information to adjust power levels and direction, ensuring safe and efficient energy transfer while avoiding sensitive objects and adhering to regulatory limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If conventional wireless charging systems transmit power waves to charge devices, then energy transfer is achieved, but the transmission distance is limited and devices must be proximately located within a magnetic field
Solution Approach 1:
The system segments the transmission space into multiple three-dimensional zones and uses multiple transmitters distributed throughout the space. Each transmitter serves a specific zone, allowing devices to be charged at various locations without requiring proximity to a single magnetic field source.
Solution Approach 2:
The system transitions from conventional two-dimensional planar charging surfaces to three-dimensional volumetric power transmission. Power waves are transmitted in three-dimensional space, creating pockets of energy at various heights and positions, enabling devices to be charged at multiple spatial coordinates rather than confined to a flat charging surface.
2Adaptability or versatility
If conventional systems use fixed transmitter locations, then system complexity is reduced, but user mobility and device movement tracking are not accommodated
Solution Approach 1:
The system implements dynamic tracking of devices using sensors that monitor device locations in real-time. The transmitter controller continuously updates power wave transmission parameters based on detected device positions, enabling the system to adapt to moving devices and users while maintaining reliable charging.
Solution Approach 2:
The system uses sensor feedback to detect device presence and location, then adjusts power wave transmission accordingly. The controller receives feedback from sensors about device positions and modifies transmitter operations to maintain optimal charging conditions as devices and users move through the space.
3Productivity
If power waves are transmitted at high intensity to extend transmission distance, then energy transfer efficiency improves, but electromagnetic field exposure may exceed regulatory limits
Solution Approach 1:
The system concentrates power wave energy locally at device locations rather than broadcasting high-intensity waves throughout the entire space. By creating focused pockets of energy only where devices are detected, the system achieves efficient energy transfer to devices while minimizing electromagnetic field exposure in areas where no devices are present.
Solution Approach 2:
The system performs preliminary detection of device locations using sensors before initiating high-intensity power wave transmission. This preliminary action allows the system to pre-position power waves at specific coordinates where devices are detected, ensuring efficient energy transfer while avoiding unnecessary high-intensity exposure in device-free areas.
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 approach enables efficient wireless power transmission in three-dimensional spaces, ensuring safe exposure levels and effective device charging while adapting to user mobility and environmental changes.
Implementation Method 1
generating and transmitting power waves that converge at a predetermined location in a transmission field to form a pocket of energy
Implementation Method 2
Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power
Data Source
AI summary
Systems and methods to generate and transmit power waves are disclosed herein. An example method includes: transmitting, by one or more transmitters, one or more power waves to provide power. A first antenna of a first antenna array of one or more antenna arrays of a respective transmitter of the one or more transmitters is located at a distance from a second antenna of a second antenna array of the one or more antenna arrays such that power waves transmitted by the first antenna and the second antenna are directed to form a pocket of energy to provide power to the targeted electronic device. The respective transmitter determines the distance between the first and second antennas: based upon one or more parameters received in a communication signal from the targeted electronic device, and to allow a desired mutual coupling effect between the first and second antennas.