Watch Mobile Terminal Antenna Layout for NFC Detection
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Solution Overview
Problem
The user experience in payment processing with watch-type mobile terminals is insufficient in terms of convenience, as existing solutions do not efficiently allow for easy detection and processing of product information and payment without manual carting and counter visits.
Innovation Solution
A watch-type mobile terminal with an NFC antenna arranged along the circumference of its band, enabling easy detection of product information by holding the product and allowing for immediate payment without the need to add items to a shopping cart or visit a counter, through optimized antenna layout and fastening structures for enhanced NFC signal directionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the antenna is arranged along the circumference of the band through the main body, then product information detection becomes easier and more convenient, but the device structure becomes more complex
Solution Approach 1:
The antenna is divided into multiple segments arranged along the circumferential direction of the band. Each segment is positioned at different angular locations around the main body, allowing the NFC signal to be transmitted in multiple directions simultaneously. This segmentation enables the system to detect product information regardless of the band's orientation on the user's wrist.
2Measurement precision
If the antenna layout is optimized for directional H-field progression, then product information readability improves, but the manufacturing process becomes more difficult
Solution Approach 1:
Different segments of the antenna are configured with specific orientations to create localized H-field progression in predetermined directions. Each antenna segment is designed to emit NFC signals preferentially in specific angular directions, creating zones of optimized signal strength. This local quality approach allows the band to effectively scan products in multiple directions without requiring complex active control mechanisms.
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 convenient and efficient product information detection and payment processing by allowing users to acquire and pay for products in real-time without the need for manual carting or counter visits, improving user experience and streamlining the payment process.
Implementation Method 1
an NFC signal for acquiring product information from a product proceeds toward a user's hand
Data Source
AI summary
A mobile terminal comprises: a band connected to a body so as to be worn on a user's wrist; and an antenna having at least one winding such that an NFC signal for acquiring product information from a product proceeds toward a user's hand, and passing through the body and arranged along the circumference of the band.