Muqaibel, A. and Jazi, A. (2003) New Formulation for Evaluating Complex Permittivity of Low-Loss Materials. In: IEEE-APS, Columbus, Ohio.
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A widely used method for non-contact electromagnetic characterization of materials is based on the measurement of an 'insertion transfer function'. This function is related to the complex dielectric constant of the material through a transcendental equation which can be solved numerically using a two-dimensional root search technique. Solving this complex equation is often time consuming due to slow convergence and the existence of spurious solutions. In this article, a new formulation is presented which facilitates the evaluation of complex dielectric constant of low-loss materials by means of real equations, thus requiring only one-dimensional root search techniques. A wooden slab is characterized using the new formulation. The results for loss tangent and dielectric constant are in excellent agreement with those obtained from the complex equation.
|Item Type:||Conference or Workshop Item (Paper)|
|Divisions:||College Of Engineering Sciences > Electrical Engineering Dept|
|Creators:||Muqaibel, A. and Jazi, A.|
|Deposited By:||Mr. Md. Ahsanul Alam|
|Deposited On:||21 Apr 2008 10:48|
|Last Modified:||12 Apr 2011 13:08|
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