F. T. Pachón-García, J. M. Paniagua-Sánchez, M. Rufo-Pérez, and A. Jiménez-Barco. Computing Ground-Wave Electric Field at MF Band via FDTD Method. Progress In Electromagnetics Research Symposium. PIERS Proceedings, Stockholm, Sweden, August 12-15, 2013. pp. 300-304. ISSN: 1559-9450, ISBN: 978-1-934142-26-4.
Abstract
This paper presents a study about calculations of electric field at medium frequency (MF: 300kHz-3MHz), based on 2D finite-difference time-domain (FDTD) method. Variations of electric field with land conductivity and with typified mountains are evaluated, and the results are validated with Millington expressions and the finite element method-parabolic equation (FEM-PE), agreeing well. The interest of introducing this technique for calculating electric field levels is that it includes reflection, diffraction, surface wave, and takes into account backscattering. Therefore, it provides a more robust solution in non-ideal environments with difficult terrain, being this a first step to analyse how suitable its use is, in terms of time consuming and accuracy of results for this frequency band.
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