A UWB Monopole Antenna Design based RF Energy Harvesting Technology

2018 Third Scientific Conference of Electrical Engineering (SCEE) Pub Date : 2018-12-01 DOI:10.1109/SCEE.2018.8684112

T. Elwi, Omar Almukhtar Tawfeeq, Y. Alnaiemy, Hayder S. Ahmed, N. Lajos

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引用次数: 12

Abstract

In this paper, an Ultra-Wide-Band (UWB) printed monopole antenna based Hard Surface (HS) is proposed for RF energy harvesting to serve the application of the Internet of Things (IoT). The proposed antenna is constructed of a monopole of an open mouth flower patch mounted on an FR4 substrate and followed by an HS array. The antenna is backed with a partial ground plane to enhance the antenna bandwidth. The stability in the antenna radiation pattern over the entire frequency band is achieved by introducing three rows of the proposed HS based on H-Resonators (HS-HR) next to the patch edge. Such arrays provide an Omni directional antenna at several frequency bands that suit the application of RF energy harvesting. The array of the proposed HS-HR provides high electromagnetic impedance within the frequency band of interest toward the patch length. Numerical simulations are accompanied using CST MWS and HFSS software packages to evaluate the antenna performance. Finally, the related measurements to the antenna performance and RF harvesting are conducted at 2.45GHz. It is found that the proposed antenna provides a conversion efficiency of 35% with an acceptable gain-bandwidth product.

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基于射频能量收集技术的超宽带单极天线设计

本文提出了一种基于硬表面(HS)的超宽带印刷单极天线，用于射频能量收集，服务于物联网(IoT)的应用。所提出的天线由安装在FR4基板上的开口花片单极子和紧跟着的HS阵列构成。天线采用部分接地平面，增强天线带宽。通过在贴片边缘附近引入三排基于h谐振器的HS (HS- hr)，实现了天线辐射方向图在整个频带上的稳定性。这种阵列提供了适合射频能量收集应用的几个频段的全向天线。所提出的HS-HR阵列在对贴片长度感兴趣的频带内提供高电磁阻抗。利用CST MWS和HFSS软件包对天线性能进行了数值模拟。最后，在2.45GHz频段对天线性能和射频采集进行了相关测量。结果表明，该天线的转换效率可达35%，增益-带宽积可接受。

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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2018 Third Scientific Conference of Electrical Engineering (SCEE)

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