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http://dx.doi.org/10.5573/ieek.2013.50.10.245

Numerical Calculation for Impedance of Horizontal Ground Electrode for Information and Communication Facilities with Considering Characteristics of Permittivity in Soil  

Ahn, Chang-Hwan (Department of Digital Electronics, Inha Technical College)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.10, 2013 , pp. 245-251 More about this Journal
Abstract
An impedance of ground electrode for information and communication facilities has a significant relationship with the electrical characteristics of soil where the ground electrode is buried. Especially, the impedance of ground electrode is directly affected by the characteristics of permittivity and conductivity in soil as a function of a frequency of an applied electric field. The program based on the electromagnetic field model was developed in MATLAB. Because both permittivity and conductivity can not be modified in commercial programs. The permittivity of soil was applied with the Debye equation which is a model of dielectric relaxation. And the empirical equation of the conductivity in soil was quoted in other paper. In order to confirm the reliability of proposed program, the impedance measurement of ground electrode was carried out, which were compared with the results of simulation in commercial program. In result, it was confirmed that the impedance and phase different simulated by appling the characteristics of permittivity and conductivity in soil are in good agreement with the measured values than results of NEC.
Keywords
Permittivity of Soil; Debye Equation; Complex Conductivity; Method of Moment;
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