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Low permittivity cordierite-based microwave dielectric ceramics for 5G/6G telecommunications
Lou, Weichao Mao, Minmin Song, Kaixin Xu, Kuiwen Liu, Bing Li, Wenjun Yang, Bin Qi, Zeming Zhao, Jianwei Sun, Shikuan
Lou, Weichao
Mao, Minmin
Song, Kaixin
Xu, Kuiwen
Liu, Bing
Li, Wenjun
Yang, Bin
Qi, Zeming
Zhao, Jianwei
Sun, Shikuan
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EPub Date
Publication Date
2022-02-01
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Abstract
5G and forthcoming 6G communication systems require dielectric ceramics with low relative permittivity (εr) and near-zero temperature coefficient of resonant frequency (τf) for the lower part of the microwave (MW) band and at sub-Terahertz. Mg2Al4Si5O18 (MAS) ceramics are promising candidates due to their low εr (~6) and high-quality factor (Q×f >40,000 GHz) but have a large f. In this study, 5.5wt% TiO2 (MAS-T5.5) was used to adjust τf of MAS to -2.8 ppm/℃ whilst retaining low εr (5.24) and good Q×f (33,400 GHz), properties consistent with those obtained by infrared reflectance. A demonstrator microstrip patch antenna with gain 4.92dBi and 76.3% efficiency was fabricated from MAS-T5.5.
Citation
Lou, W., Mao, M., Song, K., Xu, K., Liu, B., Li, W., Yang, B., Qi, Z., Zhao, J., Sun, S., Lin,H., Hu, Y., Zhou, D., Wang, D., & Reaney, I. M. (2022). Low permittivity cordierite-based microwave dielectric ceramics for 5G/6G telecommunications. Journal of the European Ceramic Society, 42(6), 2820-2826. https://doi.org/10.1016/j.jeurceramsoc.2022.01.050
Publisher
Elsevier
Journal
Journal of the European Ceramic Society
Research Unit
DOI
10.1016/j.jeurceramsoc.2022.01.050
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PubMed Central ID
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Article
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ISSN
0955-2219