Antenna Module Boards for Wireless Power
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Solution Overview
Problem
Existing technologies for wireless power transmission face challenges in efficiently delivering power to devices without access to AC power outlets and require innovative antenna configurations to enhance power transfer efficiency and user experience.
Innovation Solution
The development of wireless power transmitters with antenna module boards (AMBs) arranged in configurations such as star patterns and circular shapes, featuring antennas with different polarizations to optimize power transmission and include visual signals like LEDs for user notification, allowing for efficient power delivery and user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional battery chargers are used, then devices can be recharged, but access to AC power outlets is required which is not always available or convenient
Solution Approach 1:
The patent replaces the mechanical connection system (physical plug and AC outlet) with an electromagnetic field-based wireless power transmission system. The transmitter uses electromagnetic radiation to deliver power wirelessly to the receiver, eliminating the need for physical connection to AC outlets and enabling charging in locations without electrical infrastructure.
2Loss of energy
If antenna configurations are optimized for power transmission, then power transfer efficiency improves, but device complexity increases
Solution Approach 1:
The patent divides the antenna system into multiple antenna module boards (AMBs), each containing multiple antennas with specific polarizations. This segmentation allows optimization of power transfer efficiency through coordinated operation of multiple specialized antenna elements while managing complexity through modular architecture where each AMB can be independently designed and configured.
Solution Approach 2:
The patent assigns different polarizations to different antenna groups on the AMBs to optimize power transmission to devices with various orientations. By providing locally optimized radiation patterns from different antenna subsets, the system achieves high efficiency across multiple device positions and orientations without requiring a single complex omnidirectional configuration.
3Productivity
If multiple antennas are used for power transmission, then power delivery to multiple devices is enabled, but interference between circuitry and antennas increases
Solution Approach 1:
The patent positions the antennas on the front surface of the AMBs while placing the control and power circuitry on the reverse side of the boards. This spatial separation in the third dimension (depth/thickness of the board) effectively isolates the radiating antenna elements from the electronic circuitry, minimizing electromagnetic interference while maintaining the ability to charge multiple devices simultaneously.
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 enables efficient wireless power transmission to multiple devices, reduces interference between circuitry and antennas, and provides users with visual cues for power delivery directions and status, enhancing user experience and device charging efficiency.
Implementation Method 1
a need exists for technology that overcomes the problem demonstrated above, as well as one that provides additional benefits. The examples provided herein of some prior or related systems and their associated limitations are intended to be illustrative and not exclusive.
Implementation Method 2
featuring antennas with different polarizations to optimize power transmission
Implementation Method 3
include visual signals like LEDs for user notification
Data Source
AI summary
The disclosed technology relates to antenna configurations for wireless power transmission and supplemental visual signals. In some implementations, the disclosed technology includes a wireless power transmitter with boards that have multiple antennas physically coupled to the board. In some implementations, the antennas boards are arranged in a polygonal configuration (e.g., star shape). Additionally, in some implementations, the antennas can have different polarization configurations.