基于1位紧耦合单元的宽带波束扫描反射阵

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-24 DOI:10.1109/TAP.2025.3552235

Wenting Li;Zhikang Ai;Yejun He;Chong Zhang;Yao Gao;Ruiyang Li;Steven Gao

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引用次数: 0

摘要

本文提出了一种宽带波束扫描反射天线。反射面是基于1位紧耦合元件构建的。相位控制通过在元件的延迟线上加载射频（RF）开关来实现。为了获得更好的旁瓣电平和波束方向，应用粒子群优化算法对反射面上的射频开关状态进行了优化。此外，还提出了一种计算强耦合单元反射相位的新方法。为了验证设计，模拟、制作和测量了一个由$27 × 9$组成的原型反射阵。测量结果表明，该反射射线在4 ~ 6 GHz范围内可实现±45°波束扫描，且主波束稳定。

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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A Wideband Beam-Scanning Reflectarray Based on the 1-bit Tightly Coupled Unit Cell

In this article, a wideband beam-scanning reflectarray antenna is proposed. The reflecting surface is built based on the 1-bit tightly coupled elements. The phase control is achieved by loading radio frequency (RF) switches on the delay lines of the elements. To obtain better sidelobe levels (SLLs) and beam directions, the state of the RF switch on the reflecting surface is optimized by applying particle swarm optimization (PSO). Additionally, a novel method for calculating the reflection phase of the strongly coupled elements is proposed. To verify the design, a prototype reflectarray consisting of

$27\times 9$

elements is simulated, fabricated, and measured. Measured results show that the proposed reflectarray can achieve ±45° beam scanning from 4 to 6 GHz with the stable main beam.

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来源期刊

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques