研究目的
To present a novel one-port probe technique that combines the measurements of a rectangular waveguide and coaxial probe to nondestructively yield the permittivity and permeability of a PEC-backed material.
研究成果
The novel single-probe technique presented in this letter successfully combines the measurements of a rectangular waveguide and coaxial probe to nondestructively determine the permittivity and permeability of a PEC-backed material. Experimental validation on the magnetic material SF-3 showed good agreement with results obtained using the traditional transmission/reflection (TR) RWG approach, indicating the technique's readiness for field testing in NDE applications.
研究不足
The technique's sensitivity to common experimental errors such as measured reflection coefficients, MUT thickness, and flange-plate thickness uncertainties was quantified. The impact of MUT thickness uncertainty is especially evident in the permeability error.
