NFC Antenna Heat Dissipating Sheet for Portable Terminals
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Solution Overview
Problem
Portable terminals with NFC antennas face challenges in heat dissipation and wireless communication quality, particularly due to high temperatures and interference from environmental factors, which can affect user safety and communication efficiency.
Innovation Solution
A wireless communication module incorporating a heat dissipating sheet with a pattern that detects magnetic flux and transceives wireless signals, combined with a magnetic sheet for shielding, and a flexible printed circuit board for enhanced antenna performance, to improve heat dissipation and communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional NFC antenna is used in portable terminals, then wireless communication functionality is achieved, but heat dissipation becomes problematic and user safety is compromised
Solution Approach 1:
The patent combines the NFC antenna structure with a heat dissipation sheet into a single integrated component. The antenna is formed on the heat dissipation sheet, which is then attached to the portable terminal cover, merging the wireless communication function with the thermal management function in one element.
Solution Approach 2:
The heat dissipation sheet is constructed using composite materials including graphite particles dispersed in a polymer matrix. This composite structure provides both the electrical conductivity needed for NFC antenna operation and the thermal conductivity required for effective heat dissipation.
2Reliability
If environmental magnetic interference is present, then wireless communication quality deteriorates, but adding shielding increases device complexity
Solution Approach 1:
The magnetic shielding layer is integrated directly onto the heat dissipation sheet, combining the electromagnetic interference shielding function with the existing thermal management layer. This eliminates the need for separate shielding components and reduces overall structural complexity.
Solution Approach 2:
The heat dissipation sheet with its conductive graphite-based composite material serves as an intermediary layer that provides both thermal management and electromagnetic shielding functions. The sheet acts as a mediator between the antenna and the external environment, protecting against magnetic interference while maintaining communication quality.
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 effectively reduces heat buildup in portable terminals, enhancing user safety and improving wireless communication efficiency by efficiently dissipating heat and minimizing interference, thereby improving the overall performance of NFC-based communication systems.
Implementation Method 1
the first antenna device includes a heat dissipating sheet with a first pattern that can detect a surrounding magnetic flux and transceive a wireless signal
Implementation Method 2
heat dissipating sheet with a first pattern that can detect a surrounding magnetic flux and transceive a wireless signal
Data Source
AI summary
A wireless communication module includes a controller configured to control wireless communication operations, an antenna module that includes a first antenna device, and a matching circuit configured to perform impedance matching between the controller and the antenna module, wherein the first antenna device includes a heat dissipating sheet with a first pattern that transceives wireless signals by detecting a surrounding magnetic flux.