![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
This paper presents a simple technique used to reduce the angular dispersion of the finite-difference time-domain (FDTD) method applied to the propagation of VLF-LF radiowaves in the earth-ionosphere waveguiding structure. This technique is based on the introduction of an artificial anisotropy in the Maxwell equations.