Byondi Franck Kimetya, Chung Youchung
Information and Communication Engineering Department, Daegu University, Kyungsan 38453, Korea.
Sensors (Basel). 2021 Feb 18;21(4):1408. doi: 10.3390/s21041408.
In this paper, we describe a long-range convex cavity-type passive ultra-high-frequency (UHF) radio frequency identification (RFID) tag to use on various metal and non-metal surfaces, for IoT sensor energy harvesting. The tag antenna is built on the 3D printed cavity structure with polylactic acid (PLA) plastic and painted with the conductive ink on the 1 mm protruding area (convex) of inner surface and the side-walls of the cavity structure to form a cavity structure. The tag is designed to operate in the UHF band (840-960 MHz). This long-range cavity tag antenna (CTA) works at both 920 MHz and 915 MHz UHF RFID frequencies. It provides a linear polarized (LP) frontal reading range of 35 m and side reading range above 15 m when mounted on either metal or non-metal objects. We describe the antenna characteristics, structure, modeling, simulation, and experimental results. A mathematical reading range also was calculated and compared with experimental data.
在本文中，我们描述了一种用于物联网传感器能量收集的远程凸腔型无源超高频（UHF）射频识别（RFID）标签，可用于各种金属和非金属表面。标签天线基于3D打印的带有聚乳酸（PLA）塑料的腔结构构建，并在腔结构内表面和侧壁的1毫米突出区域（凸面）上涂有导电油墨，以形成腔结构。该标签设计用于在UHF频段（840 - 960 MHz）工作。这种远程腔标签天线（CTA）在920 MHz和915 MHz的UHF RFID频率下均能工作。当安装在金属或非金属物体上时，它提供35米的线性极化（LP）正面读取范围和超过15米的侧面读取范围。我们描述了天线特性、结构、建模、仿真和实验结果。还计算了数学读取范围并与实验数据进行了比较。
