Spiral Antenna Wiring with Linear and Bent Segments for NFC Recognition
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Solution Overview
Problem
Conventional antenna wirings in portable terminals, often in simple spiral shapes, experience decreased recognition rates during wireless communications due to varying approach types and positions, affecting functions like NFC and MST.
Innovation Solution
The antenna device incorporates spiral wiring with a linear part and a bent part forming a meandering line, creating a magnetic field that maintains high recognition rates by forming magnetic fields in both width and length directions, enhancing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple spiral shaped antenna wiring is used, then the device complexity is reduced and manufacturing is easier, but the recognition rate during wireless communications decreases
Solution Approach 1:
The antenna wiring is segmented into distinct functional parts: a linear part for generating magnetic fields in the width direction and a bent part for generating magnetic fields in the length direction. This segmentation allows each part to optimize its magnetic field generation for specific orientations, thereby improving overall recognition rate while maintaining a manufacturable spiral structure.
Solution Approach 2:
Different parts of the antenna wiring are given different geometric qualities - the linear part maintains straight or gently curved segments for width-direction field generation, while the bent part incorporates meandering patterns for length-direction field generation. This local differentiation of geometric properties enables the antenna to maintain high recognition rates across various communication orientations.
2Device complexity
If the antenna wiring is configured in a simple spiral pattern, then the device complexity is minimized, but the magnetic field formation consistency across different orientations deteriorates
Solution Approach 1:
The antenna wiring is divided into functionally distinct linear and bent segments, where the linear part consistently generates magnetic fields in the width direction and the bent part consistently generates magnetic fields in the length direction. This segmentation ensures stable and consistent magnetic field formation across different orientations without requiring complex multi-component structures.
Solution Approach 2:
Instead of using a uniform spiral pattern that attempts to generate magnetic fields in all directions equally, the invention inverts the approach by using a non-uniform pattern with dedicated linear and bent sections that generate magnetic fields in specific directions. This inversion of the uniform spiral concept achieves better orientation consistency while actually reducing structural complexity.
3Ease of manufacture
If a uniform spiral antenna wiring is used, then the manufacturing process is simplified, but the communication recognition rate varies depending on approach types and positions
Solution Approach 1:
The antenna wiring incorporates local quality variations with linear parts optimized for width-direction magnetic field generation and bent parts optimized for length-direction magnetic field generation. This allows the antenna to adapt to different approach types and positions during wireless communication while maintaining a relatively simple single-layer spiral manufacturing process.
Solution Approach 2:
The antenna wiring achieves multi-functionality by incorporating both linear and bent parts within a single spiral structure, enabling it to generate magnetic fields effectively in both width and length directions. This universal design allows the antenna to maintain high recognition rates across various communication scenarios including different approach types and positions, without requiring separate antenna structures for different functions.
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 configuration significantly increases recognition rates during wireless communications by ensuring consistent magnetic field formation across different orientations and distances, improving the functionality of NFC and MST in portable terminals.
Implementation Method 1
a spiral wiring having a ring shape and electrically connected to the terminal body, wherein the spiral wiring includes a linear part formed as a straight line or a curved line, and a bent part formed as a meandering line
Implementation Method 2
a magnetic part disposed on a surface of the antenna wiring and configured to provide a magnetic path of a magnetic field generated by the antenna wiring
Data Source
AI summary
An antenna device includes: an antenna wiring including a spiral wiring having a ring shape, wherein the spiral wiring includes a linear part formed as a straight line or a curved line, and a bent part formed as a meandering line.