Wireless communication employing radio-frequency identification (RFID) tags is progressively more widespread in a variety of industrial and commercial sectors. Aspects as demanding specific needs regarding reading distance, production cost, and processability are requested for commercial applications. Nowadays, printing of optical barcodes is the most economically technology for short distance (up to ~30 cm) reading applications. However, the large-scale and low-cost printing of RFID tags would be a competitive alternative to barcode technology because it allows quicker identification with much less reading errors. Here we demonstrate a semi-transparent, screen printed RFID antennas using a non-metallic and environmentally friendly conductive paste. The variation of the film thickness (from 2.5 up to 15 µm) permitted the fabrication of antennas with reading range (0.84–3.29 m), sheet resistance (6.2–36 Ω/sq), and optical transmittance (0–32.3%), which are compatible to commercial or industrial applications aiming short to moderate reading distances.

在各种工业和商业领域中，采用射频识别（RFID）标签的无线通信正在逐渐普及。对于商业应用，要求在阅读距离，生产成本和可加工性方面有特定要求的方面。如今，光学条形码的打印是用于短距离（约30厘米）读取应用的最经济的技术。但是，大规模，低成本的RFID标签打印将成为条形码技术的替代选择，因为它可以更快地识别并且读取错误更少。在这里，我们演示了一种使用非金属且环保的导电胶制成的半透明，丝网印刷的RFID天线。膜厚的变化（从2起）