A Millimeter-Wave Antipodal Linearly Tapered Slot Antenna Array for 5G Wireless Communication

IF 1.2 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Antennas and Propagation Pub Date : 2023-07-21 DOI:10.1155/2023/6227251

C. Ni, W. W. Wang, Y. C. Zheng, J. Ding, K. Cao, B. Liu

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Abstract

This paper presents an antipodal linearly tapered slot antenna (ALTSA) array with the newly emerging substrate-integrated coaxial line (SICL) technology. Each element of the proposed array consists of two vertically stacked antipodal tapered slot antennas (TSA) with the inner conductor of a SICL as the shared fin. The vertical symmetry of this radiating element structure significantly suppresses the cross-polarization level. By employing a SICL-based power splitter with differential outputs, a two-element array with horizontal symmetry is formed. With the inner conductors of two parallel SICLs combined as the flaring metal shared by adjacent tapered slots, the main beam squint is effectively suppressed. Experimental results show an actual −10-dB impedance bandwidth (BW) of 24.5∼34.4 GHz, and the realized gain range measured is 16.1∼18.7 dBi. The cross-polarization levels are −39.4 dB/−40.7 dB at 30 GHz for the E-/H-planes. The measured results agree well with the simulated data which demonstrates the feasibility of the proposed SICL-based ALTSA scheme in the potential 5 G·millimeter-wave (mmWave) applications.

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用于5G无线通信的毫米波反足线性锥形缝隙天线阵列

本文提出了一种采用新型衬底集成同轴线（SICL）技术的对极线性锥形缝隙天线（ALTSA）阵列。所提出的阵列的每个元件由两个垂直堆叠的对极锥形缝隙天线（TSA）组成，SICL的内部导体作为共享鳍。这种辐射元件结构的垂直对称性显著地抑制了交叉极化水平。通过采用基于SICL的差分输出功率分配器，形成了具有水平对称性的两元件阵列。通过将两个平行SICL的内部导体组合为相邻锥形槽共享的扩口金属，可以有效地抑制主梁斜视。实验结果显示实际−10 dB阻抗带宽（BW）为24.5～34.4 GHz，测得的实际增益范围为16.1～18.7 dBi。交叉极化水平为−39.4 分贝/−40.7 30时的dB E-/H-平面的GHz。测量结果与模拟数据吻合良好，证明了所提出的基于SICL的ALTSA方案在潜在5 G·毫米波（mmWave）应用。

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

International Journal of Antennas and Propagation ENGINEERING, ELECTRICAL & ELECTRONIC-TELECOMMUNICATIONS

CiteScore

3.10

自引率

13.30%

发文量

158

审稿时长

3.8 months

期刊介绍： International Journal of Antennas and Propagation publishes papers on the design, analysis, and applications of antennas, along with theoretical and practical studies relating the propagation of electromagnetic waves at all relevant frequencies, through space, air, and other media. As well as original research, the International Journal of Antennas and Propagation also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.