Intelligent Wireless Power Transmitter Beamforming
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Solution Overview
Problem
Conventional wireless power transmission systems using radio wave radiation face challenges in efficiency, transmission distance, and safety due to omni-directional microwave radiation, which is harmful and inefficient for powering sensors in extreme environments like nuclear power plants and chemical factories, where battery replacement is difficult.
Innovation Solution
An intelligent wireless power transmitter employing an array antenna module and a local controller for beamforming and power distribution, using microwaves to focus power on a target receiver, and a power distribution control unit to manage multiple transmitters, ensuring efficient and directed power delivery while avoiding obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If omni-directional microwave radiation is used for wireless power transmission, then power can be transmitted in all directions, but transmission efficiency is low and transmission distance is limited
Solution Approach 1:
The patent applies beamforming technology to concentrate microwave energy in specific directional beams toward target receivers rather than radiating uniformly in all directions. The array antenna module controls phase and amplitude of each antenna element to create focused power transmission paths, improving transmission efficiency while maintaining the ability to serve multiple receivers through electronic beam steering.
2Adaptability or versatility
If omni-directional microwave radiation is used for wireless power transmission, then power can be transmitted in all directions, but transmission distance is limited
Solution Approach 1:
By concentrating microwave energy into focused directional beams through beamforming, the patent extends the effective transmission distance. The array antenna module creates high-gain directional radiation patterns that maintain power density over longer distances compared to omni-directional radiation, enabling power transmission to remote receivers.
Solution Approach 2:
The system dynamically steers microwave beams toward moving or repositioned receivers using electronic phase control. The beam direction can be adjusted in real-time to track receivers, maintaining optimal power transmission paths and extending the operational range of the wireless power system.
3Area of stationary object
If omni-directional microwave radiation is used, then power transmission coverage is broad, but electromagnetic harm to human body increases
Solution Approach 1:
The patent confines microwave energy to specific directional beams aimed at receivers, reducing electromagnetic exposure to surrounding areas and human bodies. The array antenna module creates focused radiation patterns that deliver power precisely where needed while minimizing stray radiation and electromagnetic interference in non-target zones.
4Power
If multiple wireless power transmitters are used to distribute power, then power delivery capacity increases, but system complexity increases
Solution Approach 1:
The patent integrates multiple transmitter functions into a coordinated system where array antenna modules work together through beamforming. The local controllers synchronize phase and amplitude across multiple transmitters to create unified power beams, achieving enhanced power delivery capacity while managing system complexity through coordinated control rather than independent operation.
Solution Approach 2:
The array antenna module serves multiple functions: it acts as both the radiating element and the beamforming control unit. The same hardware infrastructure supports multiple receivers simultaneously through electronic beam steering, eliminating the need for separate dedicated transmitters for each receiver and reducing overall system complexity.
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 solution enhances transmission efficiency, extends the power delivery distance, reduces electromagnetic harm, and allows simultaneous power supply to multiple receivers, addressing the limitations of conventional systems by providing targeted and efficient wireless charging.
Implementation Method 1
an array antenna module configured to transmit microwaves
Implementation Method 2
a local controller configured to control a phase of the array antenna module so that microwaves radiated through the array antenna module are transmitted to a target wireless power receiver. The local controller may perform beamforming for focusing power of the microwaves, which are radiated through the array antenna module, on the wireless power receiver.
Data Source
AI summary
The present disclosure relates to an intelligent wireless power transmitter. The intelligent wireless power transmitter includes an array antenna module configured to transmit microwaves, and a local controller configured to control a phase of the array antenna module so that the microwaves radiated through the array antenna module is transmitted to a target wireless power receiver.