RF Power Transmitter Using Interference Patterns for Wireless Charging
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Solution Overview
Problem
Conventional wireless power transmission systems are inefficient and cumbersome, requiring manual connection of devices to charging sources and limiting mobility due to short range and specific positioning requirements, which hampers user convenience and device usage during charging.
Innovation Solution
A method and system for wirelessly transmitting power using a transmitter that determines the location of a receiver through communication signals and adjusts RF power transmission waves to form constructive and destructive interference patterns, allowing for flexible positioning and efficient power delivery to electronic devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional wireless power transmission systems are used, then power can be delivered wirelessly to electronic devices, but the systems are inefficient and require manual connection to charging sources
Solution Approach 1:
The system automatically detects the receiver's presence and location, then initiates power transmission without requiring manual connection. The transmitter autonomously adjusts transmission parameters based on receiver feedback, enabling self-service operation that eliminates manual intervention while maintaining high efficiency.
Solution Approach 2:
The system implements bidirectional communication between transmitter and receiver, where the receiver provides feedback signals about its location, power needs, and charging status. The transmitter uses this feedback to dynamically adjust transmission power and parameters, optimizing efficiency while enabling automatic operation.
2Adaptability or versatility
If conventional wireless power transmission systems are used, then power can be transmitted wirelessly, but user mobility is limited due to short range and specific positioning requirements
Solution Approach 1:
The system dynamically adjusts transmission parameters including beam direction, power level, and frequency based on the receiver's real-time location and movement. This dynamic adaptation allows the transmitter to track and serve moving receivers within an extended range, enhancing both mobility and positioning flexibility.
Solution Approach 2:
The system transitions from fixed-position power transmission to three-dimensional spatial power delivery using beamforming and phased array technology. This enables power transmission to receivers at various positions and orientations within a volumetric space, dramatically expanding positioning flexibility and user mobility.
3Productivity
If conventional wireless power transmission systems are used, then power delivery can be achieved, but the systems are cumbersome and require specific positioning
Solution Approach 1:
The system integrates multiple functions including communication, location detection, power management, and beam control into a unified wireless power transmission platform. This multi-functional integration maintains high power delivery efficiency while reducing operational complexity through centralized control and standardized protocols.
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 convenient, efficient, and flexible wireless power delivery to electronic devices, allowing them to be charged without specific positioning constraints, enhancing user experience and device usability during charging.
Implementation Method 1
transmitting radio frequency electromagnetic waves
Implementation Method 2
RF power transmission waves converging to form controlled constructive interference patterns and destructive interference patterns
Data Source
AI summary
Wireless charging systems, and methods of use thereof, are disclosed herein. As an example, a method includes: (i) receiving, by a communications radio of a wireless power transmitter, a communication signal from a communications radio of a wireless power receiver, the communication signal including data used to determine a location of the wireless power receiver, and (ii) determining a location of the wireless power receiver based, at least in part, on the data included in the communication signal. The method further includes, in response to determining that the location of the wireless power receiver is within a wireless power transmission range defined by the transmitter, transmitting radio frequency (RF) power transmission waves towards the wireless power receiver, the RF power transmission waves converging to form controlled constructive interference patterns and destructive interference patterns in proximity to the location of the wireless power receiver.