A Low-Profile Circularly Polarized Magnetoelectric Dipole Array Based on Micrometal Additive Manufacturing for Sub-THz Applications

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

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-04 DOI:10.1109/TAP.2025.3555899

Qinlong Li;Xinrui Zhong;Cheng Guo;Zhen Wang;Guanghua Shi;Chengzu Huang;Xiaoming Chen

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引用次数: 0

Abstract

A low-profile wideband circularly polarized (CP) magnetoelectric (ME) dipole antenna is proposed based on micrometal additive manufacturing (M-MAM) technology for sub-THz applications. The CP ME dipole antenna is composed of four planar patches with a metal strip connecting the diagonal patches, four L-shaped vertical walls, and a slotted cavity which is used to enhance boresight gain and axial ratio (AR) bandwidth. A rectangular microcoaxial line (RMCL) feeding cavity is newly designed to excite the antenna via a coupling slot on the ground. By further employing the proposed antenna as radiating elements and combining a corporate RMCL feed network with an integrated RMCL-waveguide transition, a

$4\times 4$

low-profile wideband antenna array is designed and fabricated based on the M-MAM technology. The measurement results of the fabricated prototype show that the array has an operating bandwidth (

$\vert S_{11}\vert \lt -10$

dB, AR < 3 dB) from 139 to 170 GHz, and boresight gain varying from 18.6 to 20.5 dBi are achieved in the operating band. The measurement and simulation results have good agreements.

查看原文本刊更多论文

基于亚太赫兹微金属增材制造的低轮廓圆极化磁电偶极子阵列

提出了一种基于微金属增材制造（M-MAM）技术的亚太赫兹低轮廓宽带圆极化磁电偶极子天线。CP ME偶极子天线由四个平面贴片组成，四个l型垂直壁和一个用于提高轴向增益和轴向比（AR）带宽的开槽腔。设计了一种矩形微同轴馈电腔，通过地面耦合槽对天线进行激励。通过进一步采用所提出的天线作为辐射元件，并将公司RMCL馈电网络与集成RMCL波导转换相结合，设计并制造了基于M-MAM技术的4\ × 4$低轮廓宽带天线阵列。样机的测量结果表明，该阵列的工作带宽（$\vert S_{11}\vert \lt -10$ dB, AR < 3 dB）范围为139 ~ 170 GHz，工作频带内的轴向增益为18.6 ~ 20.5 dBi。测量结果与仿真结果吻合较好。

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

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