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Key Problems in Microwave Dielectric Characterization of Low-Dielectric-Constant Ceramics
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Lei LI, Xiangming CHΕN
Journal of the Chinese Ceramic Society | 2023, 51(4) : 899 - 906
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Journal of the Chinese Ceramic Society | 2023, 51(4): 899-906
• Review •
Key Problems in Microwave Dielectric Characterization of Low-Dielectric-Constant Ceramics
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Lei LI, Xiangming CHΕN
Affiliations
  • Laboratory of Dielectric Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

    • LI Lei (1981-), male, Ph.D., Associate Professor. E-mail:

About Author:

LI Lei (1981-), male, Ph.D., Associate Professor. E-mail:

Published: 2023-04-20 doi: 10.14062/j.issn.0454-5648.20220711
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Low-dielectric-constant (εr) microwave dielectric ceramics are one of the key materials for future mobile communication technology, and the accurate characterization for their basic performance parameters of εr, Qf value and temperature-dependent coefficient of resonant frequency (τf) is one of the most fundamental issues. Parallel plate method and metal resonant cavity method with TE011 mode are commonly used for measuring the microwave dielectric properties. However, the corresponding problems are neglected, which are especially important for the research and applications of low-εr microwave dielectric ceramics. In this review, the key problems of the identification of TE011 resonant mode, measurement reliability of Qf value and measurement reliability of τf were discussed for the characterization of low-εr microwave dielectric ceramics, and the corresponding solutions to the problems were given.

low dielectric constant  /  microwave dielectric characterization  /  parallel plate method  /  resonant cavity method  /  measurement reliability
李雷, 陈湘明. 低介电常数陶瓷微波介电性能评价的关键问题. 硅酸盐学报, 2023 , 51 (4) : 899 -906 . DOI: 10.14062/j.issn.0454-5648.20220711
Lei LI, Xiangming CHΕN. Key Problems in Microwave Dielectric Characterization of Low-Dielectric-Constant Ceramics[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (4) : 899 -906 . DOI: 10.14062/j.issn.0454-5648.20220711
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Year 2023 volume 51 Issue 4
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doi: 10.14062/j.issn.0454-5648.20220711
  • Receive Date：2022-08-31
  • Online Date：2026-10-20
  • Published：2023-04-20
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  • Received：2022-08-31
  • Revised：2022-10-10
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    Laboratory of Dielectric Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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