Wireless Power Transmitter Using Constructive Interference Pockets
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Solution Overview
Problem
Current wireless power transmission methods are inefficient and cumbersome, requiring extra chargers or plugs, and are not suitable for mobile devices due to distance attenuation and interference issues, necessitating a solution for wireless power transmission that maintains device mobility and portability.
Innovation Solution
A transmitter that creates a three-dimensional pocket of energy using RF signal waves, with a processor to determine constructive interference patterns and adjust transmission waves to converge at the receiver's location, allowing for wireless charging of multiple devices without wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If wireless power transmission is performed over a large distance using a single EM signal source, then the transmitted power must be boosted significantly, but this causes energy waste, potential harm to living tissue, interference with electronic devices, and heat dissipation
Solution Approach 1:
The patent divides the transmission space into multiple three-dimensional pockets, each targeted at a specific receiver location. Instead of using a single omnidirectional EM signal source that radiates energy in all directions, the system segments the power transmission into focused directional beams that converge only at the intended receiver positions, thereby eliminating energy waste in unused directions.
Solution Approach 2:
The patent creates localized energy pockets with high power density only at specific three-dimensional coordinates where receivers are located. The EM energy is concentrated locally at these pockets rather than being distributed uniformly throughout space, allowing efficient power transmission over distance without excessive energy waste or harmful radiation in surrounding areas.
2Length of stationary object
If wireless power transmission is performed over a large distance, then the transmitted power must be boosted, but this causes interference with electronic devices in the immediate vicinity
Solution Approach 1:
The patent segments the EM energy transmission into discrete three-dimensional pockets, each confined to a specific spatial location. This segmentation prevents the spread of high-power EM radiation across broad areas, thereby reducing interference with electronic devices in the vicinity while maintaining effective power transmission to distant receivers.
Solution Approach 2:
The patent applies local quality by concentrating EM energy into focused three-dimensional pockets only where receivers are located. This localized energy concentration ensures that high power levels exist only at specific points in space, minimizing harmful interference to surrounding electronic devices while enabling long-distance power transmission.
3Ease of operation
If traditional wireless charging methods are used, then devices require physical connection to power sources, but this renders electronic devices inoperable during charging
Solution Approach 1:
The patent replaces the mechanical connection system (physical plugs and chargers) with a wireless electromagnetic field-based power transmission system. Devices receive power through three-dimensional energy pockets without requiring physical connection to power sources, allowing continuous operation during charging while maintaining high power transmission efficiency through focused EM energy delivery.
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
Enables efficient and portable wireless power transmission, eliminating the need for extra chargers or plugs, and effectively powers devices by forming a localized energy field that can be harvested by receivers, enhancing mobility and convenience.
Implementation Method 1
determining a constructive interference pattern associated with the power transmission waves based on a location of a receiver; and automatically adjusting transmission of the plurality of power transmission waves to converge based on the constructive interference pattern
Data Source
AI summary
An example method for transmitting wireless power is provided, the method including: transmitting a first plurality of power transmission waves such that each of the transmission waves interferes constructively with other power transmission waves in the first plurality of power transmission waves to form controlled constructive interference at a first location having a receiver. The method also includes transmitting a second plurality of power transmission waves such that each of the second plurality of power tranmission waves interferes destructively with other power transmission waves in the second plurality of power transmission waves to form controlled destructive interference at a second location without any receiver. The method further includes receiving a communication signal from the receiver, and adjusting a phase or a gain and phase of at least one power transmission wave in each of the first plurality and the second plurality of power transmission waves based upon the communication signal.