High-Q Antenna Wireless Power Resonance Tuning
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Solution Overview
Problem
Current methods for delivering power to portable devices rely on wired connections, which can be inconvenient and limited in flexibility, especially for devices that require frequent charging or operation in various environments.
Innovation Solution
A wireless power transfer system using high-Q antennas that store energy in the near field, allowing efficient energy transmission between a transmitter embedded in a surface and a receiver on a mobile device, with adaptive tuning to maintain resonance and efficiency despite environmental changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wired connections are used to deliver power to portable devices, then reliable power delivery is achieved, but flexibility and convenience are reduced
Solution Approach 1:
The patent replaces the mechanical wired connection system with an electromagnetic field-based wireless power transfer system. The transmitter generates electromagnetic fields that couple with receiver antennas, eliminating the need for physical plug-and-play connections while maintaining reliable power delivery through field-based energy transfer.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium to transfer power between the power source and portable devices. The transmitter converts electrical power to electromagnetic fields, which then couple with receiver antennas to deliver power, serving as a non-contact intermediary that enables flexible wireless operation.
2Ease of operation
If wireless power transfer is implemented, then flexibility and convenience are improved, but efficiency may be reduced due to energy loss in transmission
Solution Approach 1:
The patent employs resonant oscillation of electromagnetic fields at specific frequencies to enhance power transfer efficiency. By tuning the transmitter and receiver to operate at resonant frequencies, the system maximizes energy coupling while minimizing losses, analogous to mechanical resonance principles where oscillating systems efficiently transfer energy at their natural frequencies.
Solution Approach 2:
The patent dynamically adjusts operating parameters such as frequency and power level to optimize transmission efficiency. The system monitors transmission conditions and modifies electromagnetic field parameters in real-time to maintain high efficiency across varying distances and environmental conditions, reducing energy loss adaptively.
3Power
If high power is transmitted wirelessly, then sufficient power delivery is achieved, but radiation exposure limits may be exceeded
Solution Approach 1:
The patent concentrates electromagnetic energy in localized near-field regions around the transmitter and receiver antennas rather than radiating power uniformly in all directions. This creates high power density in the immediate vicinity where power transfer is needed while keeping exposure levels low in surrounding areas, enabling high power delivery without exceeding radiation limits in the general environment.
Solution Approach 2:
The patent converts potentially harmful far-field radiation into beneficial near-field electromagnetic coupling. By operating in the near-field regime where electromagnetic energy is stored and coupled rather than radiated, the system transforms what would be wasteful or harmful radiation into useful localized energy transfer, achieving high power delivery while maintaining safety.
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 efficient and flexible power delivery to portable devices without the need for wires, maintaining high efficiency and adaptability across different environments and frequencies, while adhering to radiation exposure limits.
Implementation Method 1
A wireless power transfer system using high-Q antennas that store energy in the near field, allowing efficient energy transmission between a transmitter embedded in a surface and a receiver on a mobile device
Implementation Method 2
A wireless power transfer system using high-Q antennas that store energy in the near field
Data Source
AI summary
Wireless energy transfer system. Antennas are maintained at resonance with High Q. Techniques of maintaining the high-Q resonance matching are disclosed.