Antenna Module With Interlayer Magnetic Parts For NFC And MST
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Solution Overview
Problem
Portable terminals face challenges in processing payments due to the absence of a data transmission channel between the device and POS terminals, making existing payment methods like 2D barcodes and NFC cumbersome, and there is a need for an antenna module that can effectively support both NFC and MST communications without compromising performance.
Innovation Solution
An antenna module is designed with a coil part featuring spiral antenna wiring on an insulating substrate and a magnetic part with interlayer connections, where the magnetic parts are strategically positioned to enhance magnetic flux connectivity and reduce resistance, allowing for efficient operation of both NFC and MST antennas on a single module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both NFC antenna and MST antenna are mounted on a single portable terminal, then payment functionality is improved, but antenna performance and signal quality deteriorate due to interference between the two antenna systems
Solution Approach 1:
The antenna module is divided into distinct first and second antenna units with separate wiring patterns and magnetic parts, allowing each antenna type (NFC and MST) to operate independently with dedicated magnetic flux paths, thereby preventing interference while maintaining both payment functionalities
Solution Approach 2:
The first antenna wiring is disposed in the internal region of the second antenna wiring, creating a nested structure where both antenna systems coexist in the same space without interfering with each other's magnetic flux, enabling dual functionality in a compact form factor
2Reliability
If magnetic parts are added to improve magnetic flux connectivity, then MST communication performance is improved, but device complexity increases due to additional components and assembly steps
Solution Approach 1:
The magnetic parts are integrated directly into the antenna module structure, combining the magnetic flux connectivity function with the existing antenna components, thereby improving MST performance without adding separate discrete components or complex assembly steps
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 antenna module ensures efficient communication performance for both NFC and MST by minimizing magnetic flux resistance and leakage, enabling reliable payment processing and flexible integration into portable terminals.
Implementation Method 1
a magnetic part including a first magnetic part disposed in the internal region of a first surface of the insulating substrate and a second magnetic part disposed on a second surface of the insulating substrate
Data Source
AI summary
An antenna module includes a coil part including a second antenna wiring formed on an insulating substrate in a spiral shape and a first antenna wiring disposed in an internal region of the second antenna wiring, and a magnetic part including a first magnetic part disposed in the internal region of a first surface of the insulating substrate and a second magnetic part disposed on a second surface of the insulating substrate.