Profile reduction of folded transmitarray antenna using multiple feeders

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Frequenz Pub Date : 2023-11-17 DOI:10.1515/freq-2023-0174

Guowei Li, Yuehe Ge, Zhizhang (David) Chen

引用次数: 0

Abstract

In this paper, we introduce a novel design for a high-gain, low-profile quad-feed folded transmitarray antenna (FTA) to enable a more compact system. The proposed antenna system consists of a transmitarray, a reflectarray, and four identical planar microstrip U-slot patch antennas placed on the same surface of the reflectarray with an adjacent distance greater than 1λ. To compare the effectiveness of our design, we developed three different antenna array systems with the same aperture size: a single-feed transmitarray antenna (TA) system, the proposed quad-feed FTA system, and a single-feed FTA system. Our experimental results demonstrate that employing four symmetrical feeders with an adjacent distance of 3.2λ effectively reduces the height by about 76.7 % in comparison to the height of a single-feed TA, and by 30 % when compared to the height of a single-feed FTA. We also present the design, fabrication, and testing of a prototype of the proposed quad-feed FTA operating in the Ku-band. The measured results of the prototype confirm the effectiveness of our design.

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使用多个馈线的折叠发射阵列天线的轮廓减小

在本文中，我们介绍了一种高增益，低轮廓四馈源折叠发射阵列天线(FTA)的新设计，以实现更紧凑的系统。该天线系统由一个发射阵列、一个反射阵列和四个相同的平面微带u槽贴片天线组成，这些天线放置在反射阵列的同一表面上，相邻距离大于1λ。为了比较我们设计的有效性，我们开发了三种具有相同孔径大小的不同天线阵列系统:单馈源发射阵列天线(TA)系统，所提出的四馈源FTA系统和单馈源FTA系统。实验结果表明，采用四个相邻距离为3.2λ的对称馈线，与单馈线TA的高度相比，有效地降低了约76.7%的高度，与单馈线FTA的高度相比，有效地降低了30%的高度。我们还介绍了在ku波段工作的四馈自由贸易协定原型的设计、制造和测试。样机的实测结果验证了设计的有效性。

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.