Low-cost ELC-UWB fan-shaped antenna using parasitic SRR triplet for ISM band and PCS applications

Q3 Engineering

International Journal of Electronics Letters Pub Date : 2021-09-02 DOI:10.1080/21681724.2021.1966655

Atul Varshney, Nishigandha Cholake, Vipul K. Sharma

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引用次数: 12

Abstract

ABSTRACT This article presents a low-cost, fan-shaped, tri-arm, circular microstrip antenna that is practically loaded with the three split-ring resonators (SRR) and also uses defected ground structure (DGS) to obtain ultra-wideband (UWB) performance. To compensate for the decreased value of gain because of the DGS structure, the antenna is further loaded parasitically with three split-ring resonators (SRR). The introduced metamaterial SRR triplet results in improved impedance matching and 7 dB improvement in reflection coefficient (S11) at the designed frequency. This also leads to improvement in the gain of antenna and a gain of 7.16 dBi has been obtained. The paper reports 10 dB bandwidth from 1.81 GHz to 3.0 GHz which covers applications like Wi-MAX, Wi-Fi, GSM (1.9 GHz), public safety band, Bluetooth, ISM band (2.4–2.5 GHz), 3 G (2.1 GHz), 4 G LTE(2.1–2.5 GHz), WCDMA (1.9, 2.1 GHz) and other PCS applications. The measured values of S11 is lower than −10 dB for the fractional bandwidth more than 48.98% and hence ultra-wideband performance has been achieved. The antenna is novel in the sense it contains three fractal rectangular arms in the basic circular patch. The addition of arms in patch increases the overall electrical length, which results in improvement in overall bandwidth.

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低成本ELC-UWB扇形天线，使用寄生SRR三元组，用于ISM频带和PCS应用

摘要本文提出了一种低成本、扇形、三臂、圆形微带天线，该天线实际负载三个开口环谐振器（SRR），并使用缺陷接地结构（DGS）来获得超宽带（UWB）性能。为了补偿由于DGS结构而降低的增益值，天线进一步寄生负载有三个分瓣环谐振器（SRR）。引入的超材料SRR三元组在设计频率下导致阻抗匹配的改善和反射系数（S11）的7dB的改善。这也导致天线增益的提高，并且已经获得7.16dBi的增益。该论文报告了从1.81 GHz到3.0 GHz的10 dB带宽，涵盖了Wi-MAX、Wi-Fi、GSM（1.9 GHz）、公共安全带、蓝牙、ISM带（2.4–2.5 GHz）、3G（2.1 GHz）、4G LTE（2.1–2.5 GHz）、WCDMA（1.9、2.1 GHz）和其他PCS应用。对于大于48.98%的部分带宽，S11的测量值低于−10 dB，因此实现了超宽带性能。该天线是新颖的，因为它在基本圆形贴片中包含三个分形矩形臂。在贴片中添加臂增加了总电长度，从而提高了总带宽。

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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来源期刊

International Journal of Electronics Letters Engineering-Electrical and Electronic Engineering

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： International Journal of Electronics Letters (IJEL) is a world-leading journal dedicated to the rapid dissemination of new concepts and developments across the broad and interdisciplinary field of electronics. The Journal welcomes submissions on all topics in electronics, with specific emphasis on the following areas: • power electronics • embedded systems • semiconductor devices • analogue circuits • digital electronics • microwave and millimetre-wave techniques • wireless and optical communications • sensors • instrumentation • medical electronics Papers should focus on technical applications and developing research at the cutting edge of the discipline. Proposals for special issues are encouraged, and should be discussed with the Editor-in-Chief.