Flat Panel Antenna Substrate With TFT Phase Control for RF Power
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Solution Overview
Problem
Conventional wireless power transmission systems face challenges in efficiently delivering power via radio frequency (RF) means due to the need for numerous antennas and microchip control circuits, which increases costs and introduces RF noise coupling issues.
Innovation Solution
The use of TFT-based antenna management circuits and multiple adaptively phased antenna elements deposited on a flat panel substrate, allowing for efficient power delivery by measuring and controlling signal phases to facilitate wireless power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional wireless power transmission systems use multiple antennas and microchip control circuits to deliver power via RF means, then power transmission capability is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent combines multiple antenna elements and control circuits into a single integrated flat panel substrate structure. The TFT-based control circuitry is directly integrated with the antenna array on the same substrate, eliminating the need for separate microchip control circuits and reducing overall system complexity while maintaining wireless power transmission capability.
Solution Approach 2:
The flat panel substrate serves multiple functions simultaneously: it acts as both the antenna array for RF transmission and the control circuit platform. The TFT-based circuitry performs both signal processing and antenna control functions, making the system more universal and reducing the number of discrete components needed.
2Power
If conventional systems use numerous antennas and control circuits for RF power transmission, then power delivery capability is enhanced, but manufacturing cost increases
Solution Approach 1:
By merging the antenna elements and control circuits onto a single flat panel substrate using TFT technology, the patent reduces the number of discrete components that need to be manufactured and assembled. This integration approach simplifies the manufacturing process and reduces overall production costs while maintaining the required power transmission capability.
3Power
If conventional wireless power transmission uses multiple antennas and control circuits, then power transmission function is improved, but RF noise coupling issues worsen
Solution Approach 1:
The patent integrates the control circuits and antenna elements in a tightly coupled manner on the same substrate, which allows for better shielding and grounding arrangements. This integration reduces the physical separation between components, enabling more effective RF noise management and reducing coupling issues that plague conventional distributed systems.
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 reduces the number of required antennas and microchips, minimizing RF noise and costs while effectively delivering power to wireless devices, enhancing operational efficiency.
Implementation Method 1
measuring and controlling signal phases to facilitate wireless power transfer
Data Source
AI summary
A flat panel substrate with integrated antennas and wireless power transmission system for delivering power to a receiving device is presented herein. A method can comprise depositing, onto a flat panel substrate, an antenna layer comprising multiple adaptively phased antennas elements; and depositing, onto the flat panel substrate, respective thin film transistor (TFT)-based antenna management circuits for the multiple adaptively phased antenna elements—the respective TFT-based antenna management circuits being operable to measure respective first phases at which first signals are received at the multiple adaptively phased antenna elements, and based on the respective first phases, control respective second phases at which second signals are transmitted from the multiple adaptively phased antenna elements to facilitate delivery, via the second signals, of power to the receiving device. Further, the method comprises forming traces communicatively coupling the multiple adaptively phased antenna elements to the respective TFT-based antenna management circuits.