RF Wireless Power Transmitter Using Dynamic Beamforming
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wireless charging systems are inefficient and cumbersome, requiring devices to be placed at specific positions and depriving users of mobility while charging, with limited range and the need for multiple charging cables and power sources.
Innovation Solution
A method and system for wirelessly transmitting power using RF waves that form controlled constructive and destructive interference patterns, allowing power transmission to devices regardless of their position within a defined range, using a transmitter that determines the location of a receiver and adjusts antenna settings to create pockets of energy for efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional wireless charging systems are used, then power can be transmitted wirelessly, but the system requires devices to be placed at specific positions and limits user mobility
Solution Approach 1:
The patent implements dynamic beamforming that continuously adjusts the phase and amplitude of signals across multiple antenna elements based on real-time receiver position detection. This dynamic adaptation allows the system to maintain efficient power transfer regardless of device position within the charging area, resolving the contradiction between wireless convenience and positioning flexibility
Solution Approach 2:
The system changes transmission parameters including beam direction, focus point, and power distribution across antenna elements based on detected receiver location. By dynamically adjusting these parameters, the system maintains optimal charging efficiency while allowing users to place devices anywhere within the defined charging zone
2Ease of operation
If conventional wireless charging systems are used, then power transmission is possible, but the range is limited and multiple charging cables and power sources are needed
Solution Approach 1:
The patent combines multiple antenna elements into a single integrated wireless power transmission system that can simultaneously serve multiple devices. By merging the functionality of what would traditionally require separate charging cables and power sources into one unified system with extended range capability, the system reduces overall complexity while maintaining power transmission capability
Solution Approach 2:
The wireless power transmission system is designed to universally charge multiple types of devices simultaneously within its extended range. The system can adapt to different receiver positions and device types, replacing the need for multiple specialized charging cables and power sources with a single multi-functional wireless charging solution
3Ease of operation
If conventional wireless charging systems are used, then charging can occur without physical connection, but efficiency is reduced due to position requirements
Solution Approach 1:
The system continuously monitors receiver position and adjusts transmission parameters including beamforming weights, phase shifts, and amplitude distribution to maintain optimal energy transfer efficiency. By dynamically changing these parameters based on real-time position data, the system preserves charging efficiency while maintaining the convenience of wireless operation without strict positioning requirements
Solution Approach 2:
The patent implements a feedback mechanism where the system detects receiver position and uses this information to adjust transmission parameters. This closed-loop control ensures that energy is efficiently directed to the receiver regardless of its position within the charging area, maintaining high charging efficiency while preserving wireless convenience
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 flexible wireless power delivery to multiple devices within a defined area, allowing for charging without the need for specific device positioning and reducing the burden of multiple charging cables and power sources.
Implementation Method 1
transmitting, by antennas of the wireless power transmitter, radio frequency (RF) power transmission waves
Implementation Method 2
the RF power transmission waves converging to form controlled constructive interference patterns and destructive interference patterns
Data Source
AI summary
Wireless charging systems and methods are disclosed herein. An example method includes: sending, by a receiver, a communication signal to a transmitter, the receiver being embedded in a radio frequency (RF) transparent housing that is adapted to electrically connect the game controller with the receiver, wherein: the receiver is separated from the transmitter by a non-zero distance, the RF transparent housing supports the game controller, and the communication signal includes information that allows the transmitter to determine the receiver's location. After the sending, the method includes: (A) receiving, by the receiver, RF signals from the transmitter, wherein: the transmitter determines parameters of the RF signals based on the communication signal, and at least one RF signal from the RF signals constructively interferences with at least one other RF signal from the RF signals at the receiver's location, and (B) converting, by the receiver, the received RF signals into electricity.