Dual-Mode Resonant Sectorial Monopole Antenna with Stable Backfire Gain

IF 1.6 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI:10.23919/cje.2023.00.032

Feiyan Ji;Heng Zhang;Xiuqiong Xing;Wenjun Lu;Lei Zhu

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引用次数: 0

Abstract

A novel design approach to wideband, dual-mode resonant monopole antenna with stable, enhanced backfire gain is advanced. The sectorial monopole evolves from a linear, 0.75-wavelength electric prototype monopole under wideband dual-mode resonant operation. As theoretically predicted by the two resonant modes $\text{TE}_{3/5,1}$ and $\text{TE}_{9/5,1}$ within a 150° radiator, the operation principle is revealed at first. As have been numerically demonstrated and experimentally validated at 2.4-GHz band, the designed antenna exhibits a wide impedance bandwidth over 90.1% (i.e., 2.06–5.44 GHz), in which the stable gain bandwidth in the backfire, $-x-\text{direction}(\theta=90^{\circ},\ \varphi=180^{\circ})$ with peak value of 3.2 dBi and fluctuation less than 3 dB is up to 45.3% (i.e., 3.74–5.44 GHz). It is concluded that the stable wideband backfire gain frequency response should be owing to the high-order resonant mode in the unique sectorial monopole antennas.

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具有稳定背射增益的双模谐振扇形单极天线

本文提出了一种新颖的宽带双模谐振单极子天线设计方法，具有稳定、增强的反激增益。在宽带双模谐振操作下，扇形单极子由线性、0.75 波长的电原型单极子演变而来。根据 150° 辐射器内 $\text{TE}_{3/5,1}$ 和 $\text{TE}_{9/5,1}$ 两种谐振模式的理论预测，工作原理已初步揭示。经过数值演示和 2.4 GHz 频段的实验验证，所设计的天线具有超过 90.1% 的宽阻抗带宽（即 2.06-5.44 GHz）、2.06-5.44GHz），其中在反向发射时，$-x-text{direction}(\theta=90^{\circ},\\varphi=180^{\circ})$ 的稳定增益带宽高达 45.3%，峰值为 3.2 dBi，波动小于 3 dB（即 3.74-5.44 GHz）。结论是，稳定的宽带逆发射增益频率响应应归功于独特扇形单极天线中的高阶谐振模式。

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

Chinese Journal of Electronics 工程技术-工程：电子与电气

CiteScore

3.70

自引率

16.70%

发文量

342

审稿时长

12.0 months

期刊介绍： CJE focuses on the emerging fields of electronics, publishing innovative and transformative research papers. Most of the papers published in CJE are from universities and research institutes, presenting their innovative research results. Both theoretical and practical contributions are encouraged, and original research papers reporting novel solutions to the hot topics in electronics are strongly recommended.