A wideband folded reflectarray antenna with a 3-D printed circularly polarized converter

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

Frequenz Pub Date : 2024-09-18 DOI:10.1515/freq-2024-0027

Kai Xuan Wang, Jia Qi Wang, Zeng Hui Shi, Qi Wang, Feng Wei, Le Xu, Rui Li, Xiao Yu Tong, Qiwei Li

引用次数: 0

Abstract

In this letter, a wideband folded reflectarray antenna with a novel circularly polarized converter is presented. The main reflectarray is composed of dual-polarized units, which can achieve good polarization and phase characteristics with a smaller size. Based on 3-D printing technology, the proposed dielectric unit can be used to design the low-cost linear-to-circular polarization converter (LCPC) with wider bandwidth. In order to validate the performance of the proposed circularly polarized folded reflectarray antenna (CPFRA), a prototype is manufactured and measured. The maximum gain of 25.3 dBic and the maximum aperture efficiency of 38 % are obtained. The measured 3 dB gain bandwidth is 32.7 % and the measured 3 dB AR bandwidth is 31.7 %, respectively. The simulated and measured results show great agreement.

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带有 3-D 打印圆极化转换器的宽带折叠反射阵列天线

本信介绍了一种带有新型圆极化转换器的宽带折叠反射阵列天线。主反射阵列由双极化单元组成，能以较小的尺寸实现良好的极化和相位特性。基于三维打印技术，所提出的介质单元可用于设计带宽更宽的低成本线性-圆极化转换器（LCPC）。为了验证所提出的圆极化折叠反射阵列天线（CPFRA）的性能，制造并测量了一个原型。获得的最大增益为 25.3 dBic，最大孔径效率为 38%。测量的 3 dB 增益带宽为 32.7%，测量的 3 dB AR 带宽为 31.7%。模拟结果和测量结果非常吻合。

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.