Three-dimensional metal-only phoenix cell and its application for reflectarrays

IF 1.1 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Microwaves Antennas & Propagation Pub Date : 2023-10-25 DOI:10.1049/mia2.12431

Zhihang An, Tony Makdissy, María Garcia Vigueras, Sébastien Vaudreuil, Raphaël Gillard

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Abstract

A 3D metal-only waveguide-based phoenix cell for reflectarray is presented. The proposed cell consists of two concentric square waveguides and a metallic block in the centre, which offers two operation modes. The first mode uses its cross section to tune reflection phase while the second mode varies the heights of two waveguides to manipulate reflection phase. The principle of the two different modes is analysed in detail. A metal-only reflectarray antenna at 20 GHz is designed based on the first mode of the phoenix cell. It is fabricated using selective laser melting 3D printing technology. A good agreement between simulations and measurements is achieved. The measured gain at 19.75 GHz is 30.25 dBi with an aperture efficiency of 51.17% respectively. Also, the measured 1-dB gain bandwidth is 15% (19–22 GHz). A dual band metal-only reflectarray operating at 20 and 25 GHz is designed based on the second mode of the phoenix cell. The two metal-only reflectarray antennas fully demonstrate the capabilities of the proposed 3D metal-only phoenix cell.

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三维纯金属凤凰电池及其在反射阵列中的应用

本文介绍了一种基于三维纯金属波导的反射阵列凤凰单元。该电池由两个同心方形波导和位于中心的金属块组成，提供两种工作模式。第一种模式利用其横截面来调整反射相位，而第二种模式则通过改变两个波导的高度来操纵反射相位。本文详细分析了两种不同模式的原理。根据凤凰池的第一种模式，设计了一种 20 GHz 的纯金属反射阵列天线。该天线采用选择性激光熔融 3D 打印技术制造。模拟和测量结果之间达到了良好的一致。19.75 GHz 时的测量增益为 30.25 dBi，孔径效率为 51.17%。此外，测量的 1-dB 增益带宽为 15%（19-22 GHz）。根据凤凰电池的第二模式，设计了工作频率为 20 和 25 GHz 的双频纯金属反射阵列。这两个纯金属反射阵列天线充分展示了所提出的三维纯金属凤凰单元的能力。

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

Iet Microwaves Antennas & Propagation 工程技术-电信学

CiteScore

4.30

自引率

5.90%

发文量

109

审稿时长

7 months

期刊介绍： Topics include, but are not limited to: Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf