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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.

, authors=Lei LI, Xiangming CHΕN, authorsList=Lei LI, Xiangming CHΕN, authorCompany=null, correspAuthors=null, authorNote=

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

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低介电常数(εr)微波介质陶瓷是未来毫米波移动通讯技术中的关键材料之一,其基本性能参数εr、Qf值及谐振频率温度系数(τf)的精确评价乃是相关研究中最基础的课题之一。TE011模式平行板法及金属谐振腔法为评价微波介电性能的通用方法,但在使用时却存在一些被长期忽视的问题,其对低εr微波介质陶瓷的研究及应用尤为重要。本综述将探讨评价低εr微波介质陶瓷性能时在TE011谐振模式的准确识别、Qf值的测试可靠性及τf的测试可靠性等方面存在的若干关键问题,并给出相应的解决方案。

, authors=李雷, 陈湘明, authorsList=李雷, 陈湘明, authorCompany=null, correspAuthors=null, authorNote=

李雷(1981—),男,博士,副教授。

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

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

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李雷(1981—),男,博士,副教授。

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低介电常数陶瓷微波介电性能评价的关键问题
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李雷 , 陈湘明
硅酸盐学报 | 5G/6G材料专题—综合评述 2023,51(4): 899-906
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硅酸盐学报 |5G/6G材料专题—综合评述 2023 , 51 (4) : 899 -906
低介电常数陶瓷微波介电性能评价的关键问题
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李雷 , 陈湘明
作者信息
  • 浙江大学材料科学与工程学院电介质材料研究室,杭州 310027
作者简介:

李雷(1981—),男,博士,副教授。

Key Problems in Microwave Dielectric Characterization of Low-Dielectric-Constant Ceramics
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:

出版时间: 2023-04-20 doi: 10.14062/j.issn.0454-5648.20220711
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低介电常数(εr)微波介质陶瓷是未来毫米波移动通讯技术中的关键材料之一,其基本性能参数εr、Qf值及谐振频率温度系数(τf)的精确评价乃是相关研究中最基础的课题之一。TE011模式平行板法及金属谐振腔法为评价微波介电性能的通用方法,但在使用时却存在一些被长期忽视的问题,其对低εr微波介质陶瓷的研究及应用尤为重要。本综述将探讨评价低εr微波介质陶瓷性能时在TE011谐振模式的准确识别、Qf值的测试可靠性及τf的测试可靠性等方面存在的若干关键问题,并给出相应的解决方案。

低介电常数  /  微波介电性能评价  /  平行板法  /  谐振腔法  /  测试可靠性

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
  • 国家自然科学基金(52272128; U20A20243)
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doi: 10.14062/j.issn.0454-5648.20220711
  • 接收时间:2022-08-31
  • 首发时间:2026-10-20
  • 出版时间:2023-04-20
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  • 收稿日期:2022-08-31
  • 修回日期:2022-10-10
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国家自然科学基金(52272128; U20A20243)
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    浙江大学材料科学与工程学院电介质材料研究室,杭州 310027
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2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
species (%)
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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