硅酸盐学报2023，Vol.51Issue(4)：842-850,9.DOI:10.14062/j.issn.0454-5648.20220447
针对不同形状和尺寸陶瓷材料的双频自适应微波介电传感器
A Dual-band Sample Adaptive Dielectric Sensor for Ceramics of Versatile Profile and Size in Microwave Range
摘要
Abstract
Ceramic materials for microwave systems often show versatile profiles, such as cylindrical and cubic shapes with centimeter sizes. The measurement of such samples thus becomes a challenge. In this paper, a dual-band dielectric sensor based on the complementary split-ring resonators was developed, and a measurement method to characterize the samples with different shapes and sizes was proposed. The resonator creates two operation frequency ranges, which are in wireless communication bands. In each range, numerical simulation was conducted to build the fitting models for each sample. The measurement was conducted to verify the numerical models and the measurement accuracy. The results indicate that the measured accuracy can be as high as 3.5％. Such a measurement method in association with the proposed sensor is competent for dielectric measurement for ceramic of versatile profile, indicating a sample adaptive capability. The novelty of this work lies in its capability of measurement of various samples in a centimeter scale without modifying either the sensor or the material under test (MUT). In addition, a dual-band operation is also a feature of this work, and the discrepancy between the two bands is less than 5％.关键词
微波陶瓷/介电常数/双频带/谐振频率/互补开口环谐振器Key words
microwave ceramics/dielectric constant/dual band/resonate frequency/complementary split ring resonator分类
化学化工引用本文复制引用
王宸,刘小明,刘志甫,张丹..针对不同形状和尺寸陶瓷材料的双频自适应微波介电传感器[J].硅酸盐学报,2023,51(4):842-850,9.基金项目
国家自然科学基金(61871003) （61871003）
安徽省协同创新项目(GXXT-2021-027) （GXXT-2021-027）
安徽省教育厅自然科学研究项目(KJ2021A0101). （KJ2021A0101）
