利用超表面透镜和粒子群优化技术增强锥体喇叭天线的参数

Q3 Engineering

Australian Journal of Electrical and Electronics Engineering Pub Date : 2022-08-24 DOI:10.1080/1448837X.2022.2115671

Nasrin Abdollahi, F. Mohajeri

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引用次数: 0

摘要

在本文中，通过控制X波段(8 ~ 12 GHz)喇叭天线孔径上电磁场的相位和幅度分布，采用透镜来降低雷达喇叭天线的旁瓣电平(SLL)。通过将超表面透镜定位在标准X波段锥体角内，可使e面和h面SLL分别降低4 ~ 15 dB和0.8 ~ 7 dB。使用超表面透镜的测量结果表明，在整个带宽上，SLL降低了。仿真结果与实测结果吻合较好，表明在喇叭天线孔径上的场分布逐渐变细。

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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Using of metasurface lens and particle swarm optimisation for enhancement of parameters of a pyramidal horn antenna

ABSTRACT In this article, a lens is applied to reduce the horn antenna’s Side Lobe Level (SLL) based on controlling the phase and amplitude distribution of the electromagnetic fields over the aperture of the horn antenna in the X band (8−12 GHz) for radar applications. By locating the metasurface lens inside the standard X band pyramidal horn, the SLL is decreased by 4–15 dB in E-plane and 0.8–7 dB in H-plane. The measured results with metasurface lenses demonstrate the reduction of SLL over the entire bandwidth. Good agreement between measurement and simulation results shows the tapering of field distribution over the aperture of the horn antenna.

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来源期刊

Australian Journal of Electrical and Electronics Engineering Engineering-Electrical and Electronic Engineering

CiteScore

2.30

自引率

0.00%

发文量

期刊介绍： Engineers Australia journal and conference papers.