一种用于增强天线性能的新型超表面覆盖层结构。

A New Metasurface Superstrate Structure for Antenna Performance Enhancement.

作者信息

Islam Mohammad Tariqul, Ullah Mohammad Habib, Singh Mandeep Jit, Faruque Mohammad Rashed Iqbal

机构信息

Institute of Space Science (ANGKASA), Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.

Department of Electrical, Electronic and System Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.

出版信息

Materials (Basel). 2013 Jul 31;6(8):3226-3240. doi: 10.3390/ma6083226.

DOI:10.3390/ma6083226

PMID:28811432

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5521244/

Abstract

A new metasurface superstrate structure (MSS)-loaded dual band microstrip line-fed small patch antenna is presented in this paper. The proposed antenna was designed on a ceramic-filled bioplastic sandwich substrate with a high dielectric constant. The proposed 7 × 6 element, square-shaped, single-sided MSS significantly improved the bandwidth and gain of the proposed antenna. The proposed MSS incorporated a slotted patch antenna that effectively increased the measured operating bandwidth from 13.3% to 18.8% and from 14.8% to 23.2% in the lower and upper bands, respectively. Moreover, the average gain of the proposed MSS-based antenna was enhanced from 2.12 dBi to 3.02 dBi in the lower band and from 4.10 dBi to 5.28 dBi in the upper band compared to the patch antenna alone. In addition to the bandwidth and gain improvements, more directive radiation characteristics were also observed from the MSS antenna compared to the patch itself. The effects of the MSS elements and the ground plane length on the reflection coefficient of the antenna were analyzed and optimized. The overall performance makes the proposed antenna appropriate for RFID and WLAN applications.

摘要

本文提出了一种新型的加载超表面覆层结构（MSS）的双频微带线馈电小贴片天线。该天线设计在具有高介电常数的陶瓷填充生物塑料夹层基板上。所提出的7×6单元方形单面MSS显著提高了所提天线的带宽和增益。所提出的MSS包含一个开槽贴片天线，分别有效地将低频段和高频段的实测工作带宽从13.3%提高到18.8%，从14.8%提高到23.2%。此外，与单独的贴片天线相比，基于MSS的所提天线在低频段的平均增益从2.12 dBi提高到3.02 dBi，在高频段从4.10 dBi提高到5.28 dBi。除了带宽和增益的提升外，与贴片本身相比，MSS天线还具有更具方向性的辐射特性。分析并优化了MSS单元和接地平面长度对天线反射系数的影响。整体性能使所提天线适用于射频识别（RFID）和无线局域网（WLAN）应用。