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Temperature stability enhancement of low-temperature-sintered BaCo2Si2O7 ceramic and its antenna application


Citation

Wang, Chang Hao and Liu, Zi Yang and Zhang, Kai Heng and Wang, Xin and Xu, Di Ming and Pang, Li Xia and Zhou, Tao and Tan, Kar Ban and Zhou, Di (2026) Temperature stability enhancement of low-temperature-sintered BaCo2Si2O7 ceramic and its antenna application. Journal of the American Ceramic Society, 109 (8). art. no. e71049. pp. 1-11. ISSN 0002-7820; eISSN: 1551-2916

Abstract

In this study, BaCo2Si2O7 ceramics with a novel melilite-type structure (space group C2/c) were synthesized via a solid-state reaction method. Ba3V2O8 with positive TCF value was introduced into (1-x)BaCo2Si2O7-xBa3V2O8 composites (x = 0.1–0.7) to tune the large negative TCF of BaCo2Si2O7 ceramics. Furthermore, different amounts of Co2O3 (y wt%, where y = 1–5) were introduced into the composite ceramics to reduce the sintering temperature. Notably, 0.4BaCo2Si2O7-0.6Ba3V2O8 ceramics with y = 3 sintered at 925°C exhibit an εr of 11.04, a Q×f of 16 100 GHz, and a TCF of +0.2 ppm/°C. A 5G millimeter-wave dielectric resonator antenna (DRA) based on 0.4BaCo2Si2O7-0.6Ba3V2O8-3 wt% Co2O3 ceramics exhibits a high radiation efficiency of 95.1% and a peak realized gain of 6.12 dBi, indicating the promising applicability of BaCo2Si2O7-based ceramics.


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Additional Metadata

Item Type: Article
Subject: Ceramics and Composites
Subject: Materials Chemistry
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1111/jace.71049
Publisher: John Wiley and Sons Inc
Keywords: Antenna; Ba3V2O8; BaCo2Si2O7; Low-temperature co-fired ceramic (LTCC) technology; Microwave dielectric ceramics
Sustainable Development Goals (SDGs): SDG 9: Industry, Innovation and Infrastructure, SDG 12: Responsible Consumption and Production, SDG 7: Affordable and Clean Energy
Depositing User: Ms. Siti Radziah Mohamed@mahmod
Date Deposited: 26 Aug 2026 04:52
Last Modified: 27 Aug 2026 08:10
Altmetrics: https://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1111/jace.71049
URI: http://psasir.upm.edu.my/id/eprint/127989
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