季相Na2O-Fe2O3-MoO3陶瓷的结构特性、电学和微波介电性能及sub-6 GHz 5G频段贴片天线的制备

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-01-27 DOI:10.1016/j.jallcom.2025.178828

Xiangyu Xu, Lin Jiang, Yiyun Zhang, Jialun Du, Haitao Wu

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引用次数: 0

摘要

本研究提出了一种新型的NaFe(MoO4)2 （NFM）陶瓷的合成，该陶瓷通过传统的固态方法获得了低介电常数。XRD和Rietveld细化分析证实NFM陶瓷具有单斜结构，空间群为C2/c （No. 15）。采用复阻抗谱法研究了NFM陶瓷的电学性能。此外，使用键价法评估了潜在的离子迁移途径。在575℃时，NFM陶瓷具有良好的介电性能，εr = 9.31,Q×f = 23,561 GHz, τf = −88.31 ppm/℃。利用GULP、P-V-L理论、拉曼光谱和远红外反射光谱等方法研究了NFM陶瓷的结构与性能之间的关系。最终，制作了一个适合在Sub-6 GHz 5 G频段工作的贴片天线，突出了NFM陶瓷的潜在应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Structure characteristics, electrical and microwave dielectric properties of quaternary-phase Na2O-Fe2O3-MoO3 ceramic and fabrication of patch antenna for a sub-6 GHz 5G band

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Structure characteristics, electrical and microwave dielectric properties of quaternary-phase Na2O-Fe2O3-MoO3 ceramic and fabrication of patch antenna for a sub-6 GHz 5G band

This study presents the synthesis of a novel NaFe(MoO4)₂ (NFM) ceramic exhibiting a low permittivity achieved via conventional solid-state methods. XRD and Rietveld refinement analyses confirmed that the NFM ceramic possesses a monoclinic structure with space group C2/c (No. 15). The electrical properties of the NFM ceramic were investigated using complex impedance spectroscopy. Additionally, potential ion migration pathways were evaluated using the bond-valence method. The NFM ceramic demonstrated high density and optimal grain distribution at 575 °C, along with favorable dielectric properties: ε_r = 9.31, Q×f = 23,561 GHz, and τ_f = −88.31 ppm/°C. The correlation between the structure and performance of the NFM ceramic was explored by means of GULP, P-V-L theory, Raman spectroscopy, and far-IR reflection spectroscopy. Ultimately, a patch antenna suitable for operation in the Sub-6 GHz 5 G band was fabricated, highlighting the potential applications of NFM ceramics.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.