Single Structure Multi-Mode Antenna for Wireless Power
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Solution Overview
Problem
Existing near-field communication antennas are inefficient due to low quality factors and large sizes, leading to unreliable and inefficient wireless transfer of energy and data, especially when multiple operating frequencies are required, as they demand precise alignment and proximity between transmitting and receiving antennas.
Innovation Solution
A multi-mode antenna with a single structure comprising electrically connected inductor coils that can operate across various frequency bands, including Qi, Rezence, and PMA standards, allowing for dynamic adjustment of operating frequency and inductance, enabling efficient wireless transfer of energy and data with reduced size and increased flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If prior art antennas are used for near-field communication, then wireless power and data transfer can be achieved, but the efficiency is significantly reduced due to low quality factor and large size
Solution Approach 1:
The patent combines multiple inductor coils (first inductor coil and second inductor coil) into a single integrated antenna structure. This merging allows the antenna to support multiple operating frequencies (first frequency band and second frequency band) while reducing the overall footprint compared to separate antennas, thereby improving wireless transfer efficiency without requiring large size
Solution Approach 2:
The single structure antenna is designed to perform multiple functions by operating across different frequency bands. The antenna can switch between first and second operating frequencies to support various wireless communication standards (such as Qi and Rezence), making it a universal solution that replaces multiple specialized antennas with one multi-functional antenna
2Reliability
If prior art antennas are used for near-field communication, then power transfer can occur, but reliability is reduced due to requirement for precise alignment and proximity
Solution Approach 1:
The patent implements dynamic frequency switching capability that allows the antenna to adapt to different operating conditions. By switching between first and second frequency bands, the system can maintain reliable wireless power transfer even when precise alignment is difficult to achieve, as different frequencies have different propagation characteristics that can compensate for misalignment
Solution Approach 2:
The antenna design incorporates variable inductance through the combination of series and parallel connections of inductor coils. By changing the electrical parameters (inductance values) of the antenna, the resonant frequency can be adjusted to optimize power transfer at different frequencies, thereby improving reliability without requiring strict alignment between transmitting and receiving antennas
3Adaptability or versatility
If multiple operating frequencies are required, then versatility is improved, but device complexity increases due to need for multiple antenna structures
Solution Approach 1:
The patent merges multiple inductor coils into a single integrated structure that can operate at multiple frequencies. The first inductor coil and second inductor coil are electrically connected through switching circuitry, allowing the single antenna structure to provide both first and second frequency bands, thereby achieving multi-frequency operation without the complexity of multiple separate antenna structures
Solution Approach 2:
The single structure antenna is designed to perform multiple functions by supporting different operating frequencies. The antenna can switch between first and second frequency bands to support various wireless communication standards (such as Qi and Rezence), making it a universal solution that replaces multiple specialized antennas with one multi-functional antenna, thus improving versatility while reducing structural complexity
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
The solution provides improved efficiency and reliability in wireless energy and data transfer, allowing for operation across multiple standards and frequencies with reduced size and increased flexibility, enhancing user experience and compatibility with various devices.
Implementation Method 1
Near-field communication enables the transfer of electrical energy and/or data wirelessly through magnetic field induction between a transmitting antenna and a corresponding receiving antenna
Implementation Method 2
various materials or structures that prevent or block the magnetic fields that create undesirable proximity effects
Data Source
AI summary
Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands. In addition, the antenna comprises a variety of magnetic shielding materials that are positioned through the antenna structure. These magnetic materials are designed to help shape the magnetic fields being emitted by the respective inductor coils.