Abstract
We present the possibilities and challenges of passive UHF RFID tag antennas manufactured by inkjet printing silver nanoparticle ink on versatile paper-based substrates. The most efficient manufacturing parameters, such as the pattern resolution, were determined and the optimal number of printed layers was evaluated for each substrate material. Next, inkjet-printed passive UHF RFID tags were fabricated on each substrate with the optimized parameters and number of layers. According to our measurements, the tags on different paper substrates showed peak read ranges of 4–6.5 meters and the tags on different cardboard substrates exhibited peak read ranges of 2–6 meters. Based on their wireless performance, these inkjet-printed paper-based passive UHF RFID tags are sufficient for many future wireless applications and comparable to tags fabricated on more traditional substrates, such as polyimide.
Highlights
The development of the Internet of Things has created a need for cost-effective wireless electronics on environmentally friendly substrates
We present the possibilities and challenges of passive UHF RFID tag antennas manufactured by inkjet printing silver nanoparticle ink on versatile paper-based substrates
The tags on different paper substrates showed peak read ranges of 4–6.5 meters and the tags on different cardboard substrates exhibited peak read ranges of 2–6 meters. Based on their wireless performance, these inkjet-printed paper-based passive UHF RFID tags are sufficient for many future wireless applications and comparable to tags fabricated on more traditional substrates, such as polyimide
Summary
The development of the Internet of Things has created a need for cost-effective wireless electronics on environmentally friendly substrates. RFID (radiofrequency identification) tag antennas printed on versatile substrates and the use of renewable substrate materials, such as paper and cardboard, provide endless opportunities. Paper and cardboard have a wide range of properties based on their composition; they can be flexible, rigid, soft, and coarse, and they may absorb or repel water. Paper and cardboard are available with textured surfaces. These paper-based materials are indispensable materials in the packaging and graphics industry, which makes them an interesting substrate material for printed RFID tag antennas [4,5,6]. The optimized printing parameters need to be studied first
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