Circular shape monopole antenna with modified ground plane proclaiming SWB characteristics

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Frequenz Pub Date : 2022-08-26 DOI:10.1515/freq-2022-0087

Ranjeet Kumar, R. Sinha, A. Choubey, S. K. Mahto

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引用次数: 1

Abstract

Abstract Modern communication systems require an antenna with miniaturized size and large bandwidth with high data rate. In this article, a circular monopole antenna is presented with hexagonal patch on both sides of microstrip feedline and an I- shaped rectangular slot etched at the center of feedline to provide impedance matching. The modified loaded ground reduces the coupling between ground plane and radiation patch. This antenna has compact dimension of 30 mm × 25 mm with electrical size of 0.25λ × 0.20λ. This antenna has been designed and simulated in HFSS commercial software and fabricated on FR4 substrate of thickness 1.6 mm with relative permittivity 4.4, loss tangent of 0.02. The experimental results are compared with simulated one, which are in close agreement. It attains a frequency band ranging from 2.4 to 56.6 GHz with reflection coefficient <−10, percentage bandwidth of 183.72%, Bandwidth Ratio (BR) 23.58:1, and Bandwidth Dimension Ratio (BDR) of 3674.40. The peak gain and radiation efficiency of this antenna is 12.77 dBi and 98.82% at 45.84 and 5.6 GHz respectively. Time domain analysis has been done, which proclaims that the proposed antenna has SWB characteristics. It may be useful for high data rate transmission, medical imaging, and other SWB applications.

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圆形单极天线与改进的地平面宣布SWB特性

摘要现代通信系统需要具有小型化尺寸和高数据速率的大带宽的天线。本文提出了一种圆形单极天线，微带馈线两侧有六边形贴片，馈线中心有一个I形矩形槽，以提供阻抗匹配。改进的负载接地减小了接地平面和辐射贴片之间的耦合。该天线具有30 mm×25 mm的紧凑尺寸，电气尺寸为0.25λ×0.20λ。该天线已在HFSS商业软件中进行设计和模拟，并在厚度为1.6 mm、相对介电常数为4.4、损耗角为0.02的FR4衬底上制造。将实验结果与模拟结果进行了比较，结果基本一致。它的频带范围从2.4到56.6 GHz，反射系数＜−10，带宽百分比为183.72%，带宽比（BR）为23.58:1，带宽尺寸比（BDR）为3674.40。该天线在45.84和5.6GHz处的峰值增益和辐射效率分别为12.77dBi和98.82%。时域分析表明，该天线具有SWB特性。它可能适用于高数据速率传输、医学成像和其他SWB应用。

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

Frequenz 工程技术-工程：电子与电气

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

3 months

期刊介绍： Frequenz is one of the leading scientific and technological journals covering all aspects of RF-, Microwave-, and THz-Engineering. It is a peer-reviewed, bi-monthly published journal. Frequenz was first published in 1947 with a circulation of 7000 copies, focusing on telecommunications. Today, the major objective of Frequenz is to highlight current research activities and development efforts in RF-, Microwave-, and THz-Engineering throughout a wide frequency spectrum ranging from radio via microwave up to THz frequencies. RF-, Microwave-, and THz-Engineering is a very active area of Research & Development as well as of Applications in a wide variety of fields. It has been the key to enabling technologies responsible for phenomenal growth of satellite broadcasting, wireless communications, satellite and terrestrial mobile communications and navigation, high-speed THz communication systems. It will open up new technologies in communications, radar, remote sensing and imaging, in identification and localization as well as in sensors, e.g. for wireless industrial process and environmental monitoring as well as for biomedical sensing.