具有独立双向四波束的宽带双圆偏振发射反射稀疏超表面

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-23 DOI:10.1109/LAWP.2024.3519443

Yangkun Zhu;Wenquan Cao;Huangshu Zhou;Yixin Tong;Chuang Wang

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引用次数: 0

摘要

本文提出了一种具有全空间无关四波束控制的宽带双圆极化发射反射稀疏超表面（TRSM）。TRSM由两种极化响应相反的细胞组成。单元单元1传输右圆极化（RHCP）波并反射左圆极化（LHCP）波，而单元单元2则相反。采用基于遗传算法（GA）的稀疏阵列技术优化两个单元格的位置，在线性极化（LP）馈源照射下，TRSM可以在全空间独立控制四波束。实验结果表明，发射光束的最大增益分别为19.16 dBic （LHCP）和19.32 dBic (RHCP)， 3db轴比（AR）带宽分别为44.1%和48.3%。同样，反射光束的最大增益为17.62 dBic （LHCP）和19.51 dBic (RHCP)， 3db AR带宽分别为35.3%和35.4%。TRSM满足6G通信网络的多址和全覆盖要求。

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Broadband Dual Circularly Polarized Transmit Reflect Sparse Metasurface With Independent Bidirectional Quad-Beam

In this letter, a broadband dual circularly polarized (CP) transmit reflect sparse metasurface (TRSM) with full-space independent quad-beam control is proposed. The TRSM consists of two types of unit cells with opposite polarization responses. Unit cell 1 transmits right-hand circularly polarized (RHCP) waves and reflects left-hand circularly polarized (LHCP) waves, while unit cell 2 does the opposite. By employing a sparse array technique based on Genetic Algorithm (GA) to optimize the positions of two unit cells, the TRSM can independently control quad-beam in full-space when illuminated by a linear polarization (LP) feed source. Experimental results demonstrate maximum gains of 19.16 dBic (LHCP) and 19.32 dBic (RHCP) for the transmitted beams, with wide 3 dB axial ratio (AR) bandwidths of 44.1% and 48.3%. Similarly, the reflected beams achieve maximum gains of 17.62 dBic (LHCP) and 19.51 dBic (RHCP), with the 3 dB AR bandwidths of 35.3% and 35.4%. The TRSM meets the multi-access and full-coverage requirements of 6G communication networks.

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.