RF Transmitter Phase Gain Control for Wireless Power 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, limiting the mobility and portability of electronic devices.
Innovation Solution
A transmitter that creates a three-dimensional pocket of energy using RF signal waves, with a microprocessor controlling phase and gain to direct and focus the energy towards receivers, 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, then the transmitted power must be boosted, but this causes energy wastage, interference with electronic devices, and heat dissipation
Solution Approach 1:
The patent applies local quality by creating concentrated pockets of electromagnetic energy at specific receiver locations rather than broadcasting power uniformly in all directions. The transmitter adjusts phase and gain of individual antenna elements to focus energy locally where receivers are detected, preventing energy wastage and interference while maintaining effective transmission distance
Solution Approach 2:
The system dynamically adjusts transmission parameters based on real-time receiver detection. The microprocessor continuously monitors receiver presence and location, then dynamically modifies phase and gain settings of antenna elements to optimize energy delivery. This dynamic adaptation prevents energy wastage by only transmitting when receivers are present and directing energy precisely where needed
2Loss of energy
If directional power transmission is used to improve efficiency, then the signal can be focused, but this requires knowing the location of the device and is not suitable for moving devices
Solution Approach 1:
The patent implements feedback by having receivers continuously communicate their status and location back to the transmitter. The microprocessor uses this feedback information to continuously adjust phase and gain settings, maintaining focused directional transmission even as receivers move. This closed-loop feedback system enables both high transmission efficiency and support for mobile devices
Solution Approach 2:
The system dynamically tracks moving receivers by continuously detecting their presence and adjusting beam direction accordingly. The microprocessor modifies transmission parameters in real-time based on receiver movement, maintaining focused energy delivery to moving targets without requiring pre-known device locations
3Power
If electromagnetic signal power is boosted to increase received power at large distance, then the signal strength improves, but most energy is not received and it becomes hazardous and interferes with other devices
Solution Approach 1:
The patent applies local quality by concentrating electromagnetic energy into focused pockets at specific receiver locations rather than broadcasting uniformly. The transmitter uses phase and gain adjustment of individual antenna elements to deliver high power density locally where receivers are present, while maintaining low power density in surrounding areas, thus avoiding interference and hazards to living tissue
Solution Approach 2:
The patent segments the electromagnetic transmission into individual targeted beams for each detected receiver. The microprocessor controls each antenna element independently, creating separate focused energy pockets for different receivers rather than one broad transmission. This segmentation allows high power delivery to specific targets while minimizing overall energy wastage and interference
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, allowing devices to be charged without the need for physical connections, improving mobility and reducing energy wastage and interference.
Implementation Method 1
form one or more pockets of energy at the location of the receiver resulting from a constructive interference pattern produced by converging the power waves at the location
Data Source
AI summary
The embodiments described herein include a transmitter that transmits a power transmission signal (e.g., radio frequency (RF) signal waves) to create a three-dimensional pocket of energy. At least one receiver can be connected to or integrated into electronic devices and receive power from the pocket of energy. The transmitter can locate the at least one receiver in a three-dimensional space using a communication medium (e.g., Bluetooth® technology). The transmitter generates a waveform to create a pocket of energy around each of the at least one receiver. The transmitter uses an algorithm to direct, focus, and control the waveform in three dimensions. The receiver can convert the transmission signals (e.g., RF signals) into electricity for powering an electronic device. Accordingly, the embodiments for wireless power transmission can allow powering and charging a plurality of electrical devices without wires.