2.4 GHz Microstrip Patch Antenna Fabricated by Means of Laser Induced Graphitization of a Cellulose-based Paper Substrate

2021 IEEE International Flexible Electronics Technology Conference (IFETC) Pub Date : 2021-08-08 DOI:10.1109/IFETC49530.2021.9580510

Mukhtar Ahmad, G. Cantarella, M. C. Angeli, Mallikarjun Madagalam, C. Ebner, M. Ciocca, R. Riaz, Pietro Ibba, M. Petrelli, Ignacio Merino, Nitzan Cohen, P. Lugli, L. Petti

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引用次数: 5

Abstract

Since its first discovery in 2014, laser-induced graphene (LIG) has gained increasingly attention as a simple and low-cost alternative to printing techniques, which instead require additional materials such as functional ink or adhesive layers. While there are several works on LIG supercapacitors, gas sensors, and triboelectric generators, this method is still very unexplored for antennas, especially if realized on eco-friendly paper substrates. In this paper, we realized a microstrip patch antenna using LIG on a food-derived cellulose-based paper. The antenna was first designed and simulated using a High-Frequency Structure Simulator (HFSS) software, using different values of relative permittivity ϵr (from 2 to 3.6), to understand the impact of laser-induced graphitization of the substrate on the resonance frequency. The subsequently fabricated antenna showed a strong resonance peak of −25dB at 2.4 GHz, corresponding to an ϵr of 2.2, in agreement with experimental results.

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激光诱导纤维素基纸基石墨化制备2.4 GHz微带贴片天线

自2014年首次发现以来，激光诱导石墨烯(LIG)作为一种简单、低成本的印刷技术替代品受到越来越多的关注，而印刷技术需要额外的材料，如功能性油墨或粘合剂层。虽然在LIG超级电容器、气体传感器和摩擦发电机方面已经有了一些研究成果，但这种方法在天线方面仍然非常未被探索，特别是如果在环保纸基板上实现的话。在本文中，我们利用LIG在食物来源的纤维素基纸上实现了微带贴片天线。首先使用高频结构模拟器(HFSS)软件对天线进行设计和仿真，采用不同的相对介电常数ϵr值(从2到3.6)，了解激光诱导衬底石墨化对谐振频率的影响。随后制作的天线在2.4 GHz处显示出−25dB的强谐振峰，对应于ϵr为2.2，与实验结果一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE International Flexible Electronics Technology Conference (IFETC)

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