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Open-Ended Coaxial Probe with Protruding Inner Conductor  

Jung Ji-Hyun (Dept. of Radio Sciences and Eng., Korea Univ.)
Jo Yu-Sun (Dept. of Radio Sciences and Eng., Korea Univ.)
Kim Se-Yun (Imaging Media Research Center, KIST)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.16, no.1, 2005 , pp. 26-32 More about this Journal
Abstract
Open-ended coaxial probe is used to measure complex permittivities of materials in a wide bandwidth. Complex permittivity measured by a conventional coaxial probe suffers from severe fluctuation due to instrumental uncertainty when the difference between reflection coeffcients of reference and measuring materials is small. In this paper, open-ended coaxial probe with protruding inner conductor is suggested to increase the difference between reflection coefficients of reference and measuring materials. Its validity is assured by FDTD simulation and actual measurement.
Keywords
Open-Ended Coaxial Probe; Complex Permittivity; FDID;
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  • Reference
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