Daisy Chain Antenna Controller for Scalable Wireless Power
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Solution Overview
Problem
Existing high frequency wireless power transmission systems (WPTS) face scalability issues due to increased manufacturing costs as the number of antennas grows, primarily because of the rising number of connections between antennas and a central controller in point-to-point architectures.
Innovation Solution
The implementation of a daisy chain bus architecture that couples an antenna array controller with multiple antenna controllers, each controlling a set of antennas, allows for efficient phase beacon reception and transmission, using a shared phase locked loop and differential pairs for synchronization, reducing the need for extensive connections and lowering manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a point-to-point architecture is used to connect antennas to a central controller, then accurate focused directional power transmission is achieved, but manufacturing costs increase significantly as the number of antennas increases
Solution Approach 1:
The patent divides the antenna array into multiple sub-arrays, each controlled by a separate controller. This segmentation reduces the connection complexity from a single central controller to multiple distributed controllers, thereby reducing manufacturing costs while maintaining the ability to achieve focused directional power transmission through coordinated control of sub-arrays
Solution Approach 2:
The patent combines multiple antenna controllers into a unified system that operates under centralized coordination. By merging the control functions and using standardized interfaces, the system achieves accurate beamforming across the entire antenna array without requiring individual point-to-point connections from a single controller to each antenna
2Power
If the number of antennas is increased to improve power transmission capability, then wireless power delivery is enhanced, but device complexity increases
Solution Approach 1:
The antenna array is segmented into multiple sub-arrays with dedicated controllers, allowing the system to scale to thousands of antennas without proportionally increasing overall system complexity. Each sub-array can be independently managed and tested, simplifying the integration process
Solution Approach 2:
The patent organizes antennas in a two-dimensional array structure rather than a simple linear expansion. This spatial organization allows for more efficient control strategies and reduces the complexity growth rate as the total number of antennas increases, enabling scalable deployment
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 approach enables the use of thousands of antennas without significantly increasing manufacturing costs, allowing for scalable and efficient wireless power transmission while maintaining directional focus and accuracy.
Implementation Method 1
a single phase locked loop (PLL) may be shared across the one or more AMUs
Data Source
AI summary
Described herein are embodiments of apparatuses and methods a wireless power transmission system (WPTS) receiving encoded beacon information from a wireless power receiver client (WPRC) and transmitting focused, directional wireless power to the WPRC.