Conductive Silicone Wristband Loop Antenna Design
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Solution Overview
Problem
Conventional RFID tag wristbands are flimsy, prone to failure due to environmental conditions, and unattractive, making them unsuitable for robust and extended wear applications, as well as being uncomfortable and conspicuous.
Innovation Solution
A wristband made from conductive silicone rubber with integrated loop antennas and insulating silicone rubber portions, forming a durable and aesthetically appealing device capable of wireless communication, where the conductive silicone rubber loops are enhanced with color or decorative patterns, and the RFID integrated circuit package is connected to these loops to facilitate data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional RFID tag wristbands are made from plastic paper with printed antennas, then they are inexpensive and easy to manufacture, but they are flimsy, susceptible to environmental conditions, and have short service life
Solution Approach 1:
The wristband uses a composite structure combining silicone rubber substrate with conductive ink printing, creating a durable base material that resists environmental conditions while maintaining ease of manufacturing through integrated production processes
Solution Approach 2:
The patent changes the material parameters from flimsy plastic paper to robust silicone rubber, and modifies the antenna construction from separate printed components to integrated conductive ink patterns embedded in the rubber matrix, improving reliability while maintaining manufacturability
2Ease of manufacture
If the antenna is separately printed on or inserted into the wristband, then the manufacturing process is simplified, but the likelihood of failure increases due to additional interfaces and components
Solution Approach 1:
The conductive antenna pattern is merged with the silicone rubber wristband material itself, eliminating separate antenna components and interfaces. The conductive ink is printed directly onto the rubber surface and then encapsulated, creating a unified structure where the antenna and substrate become one integrated component, thereby reducing failure points while maintaining manufacturing simplicity
3Ease of operation
If conventional RFID wristbands use utilitarian designs, then they are functional for identification purposes, but they are unattractive and uncomfortable for extended wear
Solution Approach 1:
The silicone rubber wristband serves multiple functions simultaneously: it provides a durable substrate, enables comfortable extended wear through soft material properties, allows for aesthetic customization via conductive ink patterning, and maintains RFID functionality. This multi-functionality achieves both comfort and design flexibility without significantly increasing manufacturing complexity
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 provides a durable, waterproof, and comfortable RFID wristband that is both functional and fashionable, suitable for extended wear, with improved resistance to environmental factors and enhanced user experience through design and material integration.
Implementation Method 1
A wireless communication device, including multiple terminals contacting the at least one conductive silicone rubber portion, sends and/or receives data using the at least one conductive silicone rubber portion as an antenna
Data Source
AI summary
A flexible wristband includes conductive silicone rubber loops and an insulating rubber portion. The conductive silicone rubber loops are formed parallel to one another, and substantially define a circumference of the wristband. The conductive silicone loops are connected through a radio frequency identification (RFID) integrated circuit package to form a loop antenna. The insulating silicone rubber portion is formed parallel to the conductive silicone rubber loops, separating the conductive silicone rubber loops and providing an insulating break in the conductive loops. The RFID integrated circuit package includes multiple terminals respectively connected to the conductive silicone rubber loops to create a loop antenna, enabling the RFID integrated circuit package to transmit data through the loop antenna.