A Beam and Polarization Switchable All-Dielectric Transmitarray Antenna Enabled by Lego-Type Reassemblable Modular Unit

IF 5.9 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-08-10 DOI:10.1109/TAP.2026.3720269

Xinlian Du;Yu Shao;Changhong Zhang;Yu Yao;Jie Zhang

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引用次数: 0

Abstract

This communication proposes a novel Lego-type modular unit for an all-dielectric reassemblable transmitarray antenna (RTA). The unit cell is discretized into small particles serving distinct functions of phase-shifting, antireflection, and polarization conversion. The particles can be assembled together conveniently by Lego’s stud and tube structure, enabling highly flexible beam and polarization switching. Linearly polarized (LP) and circularly polarized (CP) RTAs with

$16\times 16$

unit cells are designed, and the prototypes are manufactured by low-cost 3-D-printing technology. The LP RTA attains a beam scanning range of ±60° with a peak gain of 25.6 dBi and an aperture efficiency of 39.2% at 23 GHz, and exhibits a 1-dB gain bandwidth of 19.1% (20.4–24.6 GHz). The CP RTA achieves a beam scanning range of ±40° while exhibiting a 1-dB gain bandwidth of 29.6% (19.7–26.5 GHz) and a 3-dB axial ratio bandwidth (ARBW) of 27.1% (18.5–24.2 GHz). Furthermore, the proposed dielectric particles have simple and uniform structures, which facilitate massive and rapid fabrication.

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一种由乐高型可重组模块单元实现波束和偏振可切换的全介质发射阵列天线

本通讯提出了一种新型的乐高型模块化单元，用于全介质可重组发射阵列天线（RTA）。单元胞被离散成具有相移、抗反射和偏振转换等不同功能的小颗粒。通过乐高的螺柱和管状结构，这些粒子可以方便地组装在一起，实现高度灵活的光束和偏振开关。设计了16\ × 16$单元电池的线偏振（LP）和圆偏振（CP） rta，并采用低成本的3d打印技术制造了原型。llp RTA在23 GHz时的波束扫描范围为±60°，峰值增益为25.6 dBi，孔径效率为39.2%，1 db增益带宽为19.1% （20.4-24.6 GHz）。CP RTA的波束扫描范围为±40°，1 db增益带宽为29.6% (19.7-26.5 GHz)， 3 db轴比带宽（ARBW）为27.1% （18.5-24.2 GHz）。此外，所提出的介电粒子具有简单均匀的结构，便于大批量和快速制造。

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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