Dual-Receiver Antenna Switching for Wireless Power and Data
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Solution Overview
Problem
Existing wireless systems face challenges in efficiently transferring both electrical power and data signals due to the differing quality factors required for each, with legacy data antennas being susceptible to damage from increased power signals.
Innovation Solution
A wireless receiver system utilizing separate antennas for data and power signals, with intelligent switching based on signal type, allowing optimized quality factors for each transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single antenna is used for both power transfer and data transfer, then device complexity is reduced, but antenna performance is compromised for both functions
Solution Approach 1:
The antenna system is segmented into multiple specialized antennas: one optimized for power transfer with higher Q factor and another optimized for data transfer with lower Q factor. This segmentation allows each antenna to excel at its specific function without compromise, resolving the contradiction between system simplicity and performance reliability.
Solution Approach 2:
The system dynamically switches between different antennas based on the operational mode (power transfer or data transfer). The receiver controller activates the appropriate antenna according to the current task, providing dynamic adaptability that maintains optimal performance for both functions while managing system complexity.
2Use of energy by moving object
If antenna Q factor is increased for efficient power transfer, then power transfer efficiency is improved, but data transfer fidelity deteriorates
Solution Approach 1:
Different antennas are designed with different local qualities (Q factors) suited for their specific functions. The power transfer antenna has high Q for efficient energy transfer, while the data transfer antenna has low Q for broad bandwidth and signal fidelity. This local quality differentiation resolves the contradiction between power efficiency and data fidelity.
Solution Approach 2:
The system changes the Q factor parameter by selecting different antennas based on operational needs. For power transfer, a high Q antenna is selected to maximize efficiency; for data transfer, a low Q antenna is selected to maintain signal fidelity. This parameter change strategy allows optimal performance for both contradictory requirements.
3Device complexity
If legacy data antenna is used for power signal reception, then device complexity is reduced, but antenna durability is compromised
Solution Approach 1:
The receiver system is segmented into specialized components, including a dedicated power receiving antenna designed to handle high power signals without damage. This segmentation protects the data antenna from power signal exposure, ensuring durability while maintaining system simplicity through dedicated functionality.
Solution Approach 2:
A dedicated power antenna acts as an intermediary that handles the harsh power signal environment, protecting the data antenna from direct exposure to high power levels. This intermediary approach ensures antenna durability while keeping the overall system design simple and manageable.
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 optimized data and power transfer by using distinct antennas with tailored quality factors, ensuring efficient and reliable communication and power delivery.
Implementation Method 1
Such systems often use inductive wireless power transfer, which occurs when magnetic fields created by a transmitting element induce an electric field, and hence, an electric current, in a receiving element.
Implementation Method 2
Wireless connection systems are used in a variety of applications for the wireless transfer of electrical energy, electrical power, electromagnetic energy, electrical data signals
Data Source
AI summary
A wireless receiver system, configured to receive both electrical data signals and electrical energy, includes a first receiver antenna, configured to receive one or both of the electrical data signals and the electrical energy, and a power conditioning system in electrical connection with the first receiver antenna, configured to receive electrical energy from the first receiver antenna. The wireless receiver system further includes a second receiver antenna configured to receive the electrical data signals and a receiver controller operatively associated with the first receiver antenna and the second receiver antenna and configured to determine switching instructions. The wireless receiver system further includes a switch operatively associated with the receiver controller and configured to switch receiving operations between the first and second receiver antennas based, at least in part, on the switching instructions.