期刊
PROCESSES
卷 10, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/pr10040708
关键词
resonator sensor; permittivity; measurement; substrate integrated waveguide (SIW)
资金
- National Natural Science Foundation of China (NSFC) [62071316]
- Sichuan Science and Technology Program [2020YFH0100, 2021YFH0152]
This paper presents a novel dual-band substrate integrated waveguide (SIW) sensor that can measure the complex permittivities of liquids or solid powders simultaneously. By using S-parameter measurements and applying an artificial neural network for reconstruction, the permittivities of the tested materials can be accurately and efficiently obtained.
This paper presents a novel dual-band substrate integrated waveguide (SIW) sensor that is designed to measure the complex permittivities of liquids or solid powders at two industrial, scientific, and medical (ISM) frequencies simultaneously. Resonant frequencies and quality factors are obtained from S-parameter measurements with the proposed SIW sensor, and applied to reconstructing the permittivities of materials under test through an artificial neural network. The water-ethanol mixed liquids were measured with the proposed sensor. The maximum deviations of the measured permittivities at 2.45 and 5.8 GHz are within 3% of literature results. The measurement by the proposed SIW sensor with artificial neural network reconstruction is accurate and efficient.
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