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Modeling and analysis of finite‐flange open‐ended coaxial probe for planar and convex surface coating material testing by FDTD method
Author(s) -
Hassan AbdulKadum A.,
Xu Deming,
Zhang Yujian
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(20000120)24:2<117::aid-mop10>3.0.co;2-d
Subject(s) - flange , finite difference time domain method , planar , materials science , coating , coaxial , surface (topology) , acoustics , optics , electronic engineering , composite material , engineering , mechanical engineering , computer science , physics , mathematics , geometry , computer graphics (images)
In this paper, finite‐difference time‐domain (FDTD) modeling is applied to a finite‐flange open‐ended coaxial probe to perform nondestructive coating material testing with planar and curved surfaces. From the results of the error analysis performed using FDTD simulations, it is found that the reflection coefficient is strongly affected for small radii of a convex surface sample. Compared with the spectral‐domain model, the FDTD modeling results of ε* and μ* are relatively in agreement with the published data. The results show the feasibility of using FDTD modeling of a coaxial probe with regard to the possible sample configurations that can be modeled. ©2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 24: 117–120, 2000.