Complex permittivity measurement system for solid materials using complementary frequency selective surfaces
journal contributionposted on 09.01.2020 by Chih-Kuo Lee, Shiyu Zhang, Syed Bukhari, Darren Cadman, J. C. Vardaxoglou, William Whittow
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This paper describes a novel method of characterizing complex permittivity using a complementary frequency selective surface (CFSS). The CFSS provides a passband behavior and the change in the passband when a material under test (MUT) is placed adjacent to the CFSS has been used for retrieving of the complex permittivity of the MUT. The complex permittivity of the MUT are determined based on the measured bandpass resonant frequency and insertion loss of the CFSS with the MUT. This is an amplitudeonly method where phase measurements are not required. This technique offers a convenient, fast, low-cost and nondestructive measurement that is not restricted by the sample size or shape
National Defense University, Taiwan
EPRSC under Grant EP/N010493/1 through Synthesizing 3D Metamaterials for RF, Microwave and THz Applications (SYMETA)
EPSRC under Grant EP/S030301/1 through Anisotropic Microwave/Terahertz Metamaterials for Satellite Applications (ANISAT)
- Mechanical, Electrical and Manufacturing Engineering