Dual-Wideband Slot Antenna With Simple Structure

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2024-12-04 DOI:10.1002/mop.70041

Jun Xi Li, Jie Ju Huang, Fan Jiang, Liang Hua Ye, Jian-Feng Li, Yi Qiang Ni

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Abstract

A compact dual-wideband slot antenna with a simple structure is presented. A wide slot etched in a rectangular ground plane is fed by a T-shaped strip and a coplanar waveguide (CPW) transmission line for generating an ultrawide lower operating band. Then a narrow slot, which is embedded in the T-shaped strip, is fed by a microstrip line for introducing a wide higher operating band. It is worth noting that the loading of the narrow slot and microstrip line does not enlarge the antenna size, but introduce an extra higher operating band. By using this method, a dual-wideband antenna is designed. It achieves dual wide bandwidths of 117.8% and 58.1%, which covers 0.698–2.7 and 3.3–6 GHz for the lower and higher bands, respectively. The isolation between the ports can exceed 30 dB. Additionally, the overall size of our antenna is only 0.30λ₀ × 0.24λ₀ × 0.002λ₀ (λ₀ is the free-space wavelength at the lowest frequency).

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结构简单的双宽带槽天线

提出了一种结构简单、结构紧凑的双宽带缝隙天线。在矩形接平面上刻蚀的宽槽由t形带和共面波导（CPW）传输线馈电，以产生超宽的下工作频带。然后在t形带中嵌入窄槽，由微带线馈电，以引入宽的高工作频带。值得注意的是，窄槽和微带线的加载并没有扩大天线尺寸，而是引入了额外的更高的工作频带。利用这种方法设计了一种双宽带天线。实现了117.8%和58.1%的双宽带宽，下、高频段分别覆盖0.698-2.7 GHz和3.3-6 GHz。端口间的隔离度可大于30db。此外，我们的天线的整体尺寸仅为0.30λ0 × 0.24λ0 × 0.002λ0 （λ0为最低频率的自由空间波长）。

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

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication