Dual-Wing NFC Antenna Geometry for Lighting Device Programming
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Solution Overview
Problem
Current NFC antennas in lighting technology devices are limited to predefined configurations, making data writing through NFC sensitive to antenna-reader alignment, leading to communication issues during programming.
Innovation Solution
The design of NFC antennas with two planar wing elements arranged at an angle between 80° and 100°, preferably 85° to 95°, and optionally with a ferrite core, allowing for improved magnetic coupling and reduced sensitivity to alignment, enabling successful programming of lighting technology devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional NFC antenna with predefined configuration is used, then the device structure is simple, but the programming process is highly sensitive to antenna-reader alignment causing communication issues
Solution Approach 1:
The NFC antenna is divided into two separate planar wing elements arranged at an angle to each other. This segmentation allows the antenna to receive magnetic coupling signals from multiple directions simultaneously, reducing sensitivity to alignment between the reader and antenna, and improving programming success rate.
Solution Approach 2:
The antenna design transitions from a single-planar configuration to a three-dimensional arrangement with two wing elements at an angle (80°-100°) between them. This dimensional change enables multi-directional magnetic coupling capability, allowing successful communication regardless of the reader's approach angle.
2Adaptability or versatility
If two conventional NFC antennas are placed perpendicular to each other, then multi-directional coupling is achieved, but the achievable coupling factors are reduced
Solution Approach 1:
The angle between the two planar wing elements is optimized to 80°-100° (preferably 85°-95°), which is close to but not exactly 90°. This parameter adjustment maintains multi-directional coupling capability while optimizing the magnetic coupling factor between the antenna elements and the reader, resolving the trade-off between adaptability and reliability.
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 design enhances the programming process by reducing alignment sensitivity between the NFC reader and antenna, facilitating successful programming of LED drivers and other lighting technology devices, and providing multi-directional coupling capabilities.
Implementation Method 1
Due to the two windings which are placed perpendicular to each other, magnetic coupling to the reader is possible in one additional direction.
Data Source
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AI summary
The present disclosure relates to a lighting technology device, comprising a controller, a memory functionally connected to the controller, and an NFC antenna integrated in a casing or arranged on a board carrying the controller and the memory, wherein the antenna comprises two planar antenna wing elements arranged at an angle between 80° and 100°, preferably 85°to 95° with respect to each other, and wherein the controller is configured to process NFC data received from the antenna and store in said memory said data for programming the lighting technology device.