Low permittivity cordierite-based microwave dielectric ceramics for 5G/6G telecommunications

Weichao Lou; Minmin Mao; Kaixin Song; Kuiwen Xu; Bing Liu; Wenjun Li; Bin Yang; Zeming Qi; Jianwei Zhao; Shikuan Sun; Huixin Lin; Yuanyun Hu; Di Zhou; Dawei Wang; Ian M. Reaney

doi:10.1016/j.jeurceramsoc.2022.01.050

Low permittivity cordierite-based microwave dielectric ceramics for 5G/6G telecommunications

Weichao Lou
, Minmin Mao
, Kaixin Song
, Kuiwen Xu
, Bing Liu
, Wenjun Li
, Bin Yang
, Zeming Qi
, Jianwei Zhao
, Shikuan Sun
, Huixin Lin
, Yuanyun Hu
, Di Zhou
, Dawei Wang
, Ian M. Reaney

Faculty of Electronic and Information Engineering

Research output: Contribution to journal › Article › peer-review

172 Scopus citations

Abstract

5G and forthcoming 6G communication systems require dielectric ceramics with low relative permittivity (ε_r) and near-zero temperature coefficient of resonant frequency (τ_f) for the lower part of the microwave (MW) band and at sub-Terahertz. Mg₂Al₄Si₅O₁₈ (MAS) ceramics are promising candidates due to their low ε_r (~ 6) and high-quality factor (Q×f > 40,000 GHz) but have a large τ_f. In this study, 5.5 wt% TiO₂ (MAS-T_5.5) was used to adjust τ_f of MAS to −2.8 ppm/℃ whilst retaining low ε_r (5.24) and good Q×f (33,400 GHz), properties consistent with those obtained by infrared reflectance. A demonstrator microstrip patch antenna with gain 4.92 dBi and 76.3% efficiency was fabricated from MAS-T_5.5.

Original language	English
Pages (from-to)	2820-2826
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	42
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2022.01.050
State	Published - Jun 2022

Keywords

Cordierite
Low permittivity
Patch antenna
Terahertz

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10.1016/j.jeurceramsoc.2022.01.050

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@article{4d35fd1f54a84af8b15d58f01fb5260a,

title = "Low permittivity cordierite-based microwave dielectric ceramics for 5G/6G telecommunications",

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 (\textasciitilde{} 6) and high-quality factor (Q×f > 40,000 GHz) but have a large τf. In this study, 5.5 wt\% 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 4.92 dBi and 76.3\% efficiency was fabricated from MAS-T5.5.",

keywords = "Cordierite, Low permittivity, Patch antenna, Terahertz",

author = "Weichao Lou and Minmin Mao and Kaixin Song and Kuiwen Xu and Bing Liu and Wenjun Li and Bin Yang and Zeming Qi and Jianwei Zhao and Shikuan Sun and Huixin Lin and Yuanyun Hu and Di Zhou and Dawei Wang and Reaney, \{Ian M.\}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = jun,

doi = "10.1016/j.jeurceramsoc.2022.01.050",

language = "英语",

volume = "42",

pages = "2820--2826",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Low permittivity cordierite-based microwave dielectric ceramics for 5G/6G telecommunications

AU - Lou, Weichao

AU - Mao, Minmin

AU - Song, Kaixin

AU - Xu, Kuiwen

AU - Liu, Bing

AU - Li, Wenjun

AU - Yang, Bin

AU - Qi, Zeming

AU - Zhao, Jianwei

AU - Sun, Shikuan

AU - Lin, Huixin

AU - Hu, Yuanyun

AU - Zhou, Di

AU - Wang, Dawei

AU - Reaney, Ian M.

PY - 2022/6

Y1 - 2022/6

N2 - 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 τf. In this study, 5.5 wt% 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 4.92 dBi and 76.3% efficiency was fabricated from MAS-T5.5.

AB - 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 τf. In this study, 5.5 wt% 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 4.92 dBi and 76.3% efficiency was fabricated from MAS-T5.5.

KW - Cordierite

KW - Low permittivity

KW - Patch antenna

KW - Terahertz

UR - https://www.scopus.com/pages/publications/85123985000

U2 - 10.1016/j.jeurceramsoc.2022.01.050

DO - 10.1016/j.jeurceramsoc.2022.01.050

M3 - 文章

AN - SCOPUS:85123985000

SN - 0955-2219

VL - 42

SP - 2820

EP - 2826

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 6

ER -

Low permittivity cordierite-based microwave dielectric ceramics for 5G/6G telecommunications

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Keywords

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