Physics Centre of Minho and Porto Universities (CF-UM-UP), Universidade do Minho, 4710-057 Braga, Portugal.
LaPMET─Laboratory of Physics for Materials and Emergent Technologies, Universidade do Minho, 4710-057 Braga, Portugal.
ACS Appl Mater Interfaces. 2023 Mar 1;15(8):11234-11243. doi: 10.1021/acsami.2c19889. Epub 2023 Feb 20.
One of the essential issues in modern advanced materials science is to design and manufacture flexible devices, in particular in the framework of the Internet of Things (IoT), to improve integration into applications. An antenna is an essential component of wireless communication modules and, in addition to flexibility, compact dimensions, printability, low cost, and environmentally friendlier production strategies, also represent relevant functional challenges. Concerning the antenna's performance, the optimization of the reflection coefficient and maximum range remain the key goals. In this context, this work reports on screen-printed paper@Ag-based antennas and optimizes their functional properties, with improvements in the reflection coefficient () from -8 to -56 dB and maximum transmission range from 208 to 256 m, with the introduction of a PVA-FeO@Ag magnetoactive layer into the antenna's structure. The incorporated magnetic nanostructures allow the optimization of the functional features of antennas with possible applications ranging from broadband arrays to portable wireless devices. In parallel, the use of printing technologies and sustainable materials represents a step toward more sustainable electronics.
在现代先进材料科学中，一个重要的问题是设计和制造柔性器件，特别是在物联网（IoT）的框架内，以提高其在应用中的集成度。天线是无线通信模块的重要组成部分，除了灵活性、紧凑尺寸、可印刷性、低成本和更环保的生产策略外，还具有相关的功能挑战。就天线的性能而言，优化反射系数和最大范围仍然是关键目标。在这种情况下，本工作报告了基于纸张@Ag 的丝网印刷天线，并优化了它们的功能特性，反射系数（）从-8 到-56 dB 的改善，最大传输范围从 208 到 256 m，通过在天线结构中引入 PVA-FeO@Ag 磁活性层。所包含的磁性纳米结构允许优化天线的功能特性，其可能的应用范围从宽带天线阵到便携式无线设备。同时，印刷技术和可持续材料的使用代表了迈向更可持续电子的一步。
