研究目的
To develop a 3D printed passive RFID tag on a flexible substrate with temperature sensing ability and multiple identification capabilities.
研究成果
The study successfully developed a 3D printed flexible passive RFID tag with a resonance frequency of 910 MHz, matching the North American UHF RFID band. The tags demonstrated effective multiple identification and temperature sensing with an accuracy of ±5%. This approach offers advantages in low-cost, flexible electronics manufacturing, with potential applications in tracking and sensing systems.
研究不足
The use of polyimide film may have limitations in cost or availability compared to other substrates. The temperature sensing accuracy is ±5%, which might not be sufficient for high-precision applications. The manufacturing process relies on specific equipment like the Voltera V1 printer, which could limit scalability.
1：Experimental Design and Method Selection:
The experiment involved designing and fabricating a passive RFID tag using 3D printing on a flexible polyimide substrate. The antenna design was optimized for resonance frequency matching the RFID chip at 910 MHz.
2：Sample Selection and Data Sources:
Polyimide film (Kapton? HPP) was used as the substrate. RFID chips (SL900A) and electronic components (47 nH SMD inductor,
3：2 μF SMD capacitor) were selected. List of Experimental Equipment and Materials:
Equipment included Voltera V1 printer, R&S?ZND Vector Network Analyzer (VNA), ThingMagic USBPro RFID reader, hot plate, and materials such as silver nanoparticle conductive ink, polyimide film, RFID chips, and SMD components.
4：Experimental Procedures and Operational Workflow:
Tags were designed using Eagle PCB Design software, printed with the Voltera V1 printer, baked at specific temperatures, and components were soldered. Resonance frequency was measured with VNA, and identification and temperature sensing tests were conducted using the RFID reader and custom software.
5：Data Analysis Methods:
Resonance frequency was analyzed using VNA measurements (S11 parameter), identification was verified through software programming in Microsoft? Visual C++ 2010 Express, and temperature accuracy was assessed by comparing reader values to hot plate temperatures.
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