Prior to about 1990, the modeling of electromagnetic engineering systems was primarily
implemented using solution techniques for the sinusoidal steady-state Maxwell's equations …

Wave propagation at the bottom of the electromagnetic spectrum (below 300 kHz) in the
Earth-ionosphere waveguide system has been an interesting and important area of …

In this introductory chapter we describe general properties of the Earth–ionosphere cavity,
outline the relationship of the global electromagnetic resonance to other natural low …

This paper reports the application of an efficient finite-difference time-domain (FDTD)
algorithm to model impulsive extremely low frequency (ELF) propagation within the entire …

Comparison of results from a three‐dimensional (3‐D) finite difference time domain (FDTD)
model of Schumann resonances (SR) with a set of classical eigenfrequency and quality …

Advances in computing technologies in recent decades have provided a means of
generating and performing highly sophisticated computational simulations of …

An apparent discrepancy is pointed out-at all heights, and by up to an order of magnitude-
between the height profiles of atmospheric conductivity derived at AC using ELF …

The conducting ionosphere and conducting surface of Titan, Venus, and Mars form a
concentric resonator, which would support the possibility of the existence of global …

The numerical dispersion of the finite-difference time-domain (FDTD) method is a serious
drawback in view of computing long range propagation of lightning pulses in the Earth …

This paper reports the first application of an optimized geodesic, three-dimensional (3-D)
finite-difference time-domain (FDTD) grid to model impulsive, extremely low-frequency (ELF) …