基于特征模态分析的小型微波宽带天线设计

IF 0.9 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS
Ahmad Rimi, A. Zugari, A. Mchbal, M. Ouahabi, M. Khalladi
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引用次数: 1

摘要

一种尺寸为27mm x 28mm x 1.6 mm的紧凑型宽带天线,具有良好的阻抗匹配,适用于短距离的高带宽无线电系统。为了改善阻抗匹配,在辐射元件上创建了两个矩形槽,减小了接地面尺寸,扩展了超宽带频段。利用特征模理论对天线的带宽和辐射性能进行了分析。将性能与期望的规格进行比较,并修改形状和尺寸以产生有效的辐射和主导辐射模式。结果表明,6种模态均与λn = 0共振,说明6种模态的特征值对主导电磁辐射的贡献较大,且在各自频率处模态显著性值均在1左右。此外,特征角表明天线在180°共振,因为六个模式在各自的频率下以180°相交轴线。实验结果表明,该系统在5.64 ~ 19.34 GHz之间的带宽为109.7%,最大增益为6.3 dB,最大效率约为86.5%。这些结果使该天线成为各种通信和电子应用的通用和有效的选择,并且由于其易于设计的特点,小尺寸和重量轻,易于安装在狭窄的空间中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DESIGN OF A COMPACT BROADBAND ANTENNA USING CHARACTERISTIC MODE ANALYSIS FOR MICROWAVE APPLICATIONS
A compact broadband antenna of dimensions 27 mm x 28 mm x 1.6 mm and with good impedance matching is designed for high-bandwidth radio systems with a short range. To improve the impedance matching, two rectangular slots are created on the radiating element, and the ground plane size is reduced to extend the ultra-wideband frequency band. The antenna bandwidth and radiation performance are analysed using characteristic mode theory (TCM). The performance is compared to the desired specifications, and the shape and size are modified to produce efficient radiation and dominant radiation patterns. The findings clearly demonstrate that the six modes are resonant with (λn = 0). This implies that the eigenvalues of the six modes contribute strongly to dominant electromagnetic radiation and have high modal significance values around 1 at their respective frequencies. Furthermore, the characteristic angle indicates that the antenna resonates at 180°, since the six modes intersect the axis line at 180° at their respective frequencies. Experimental results show a bandwidth of 109.7% between 5.64 and 19.34 GHz, a maximum gain of 6.3 dB, and a maximum efficiency of approximately 86.5%. These results make this antenna a versatile and effective choice for a wide variety of communications and electronics applications and easy to install in narrow spaces due to its easy design characteristics, small size, and light weight.
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来源期刊
Jordanian Journal of Computers and Information Technology
Jordanian Journal of Computers and Information Technology Computer Science-Computer Science (all)
CiteScore
3.10
自引率
25.00%
发文量
19
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