A novel ultra-low relative permittivity Mg2P4O12 metaphosphate ceramic for dielectric resonator antennas

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-04-23 DOI:10.1016/j.jeurceramsoc.2025.117480

Huanrong Tian , Xu Zhou , Zidong Zhang , Haitao Wu , Yao Liu

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引用次数: 0

Abstract

Addressing the critical demand for ultra-low relative permittivity ceramics in advanced communication systems, this study developed a novel Mg₂P₄O₁₂ metaphosphate ceramic. At microwave frequencies, it exhibits excellent performance with ε_r = 4.61 ± 0.08, Q×f = 51,073 ± 1716 GHz, and τ_f = −11.46 ± 2.1 ppm/℃, offering significant advantages in low-latency transmission and high temperature stability. Additionally, its low bulk density (∼ 2.50 g/cm³) supports lightweight design of electronic devices. Terahertz time-domain spectroscopy further demonstrated its excellent submillimeter-wave dielectric performance, suggesting potential for achieving higher Q×f values. Consequently, 5 wt% H₃BO₃ was introduced to improve sintering characteristics, significantly enhancing the quality factor to 61,757 ( ± 1608) GHz. To validate practical application, a broadband DRA was designed using Mg₂P₄O₁₂+ 5 wt% H₃BO₃ ceramics, achieving an impressive bandwidth of 27.4 % and high gain of 7.3 dBi, demonstrating great potential for radar communication applications.

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.