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Updated: Jul 30, 2025

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Published on: July 30, 2020
Magnetic Field Above Stratified Earth in Magnetic Loop Through-the-Earth Wireless Communications
1The National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA.
Abstract:
Evaluation of the very-low frequency, ultralow frequency, or extremely low frequency magnetic field (H-field) due to a buried or on-surface magnetic dipole or antenna is important for applications such as geophysical exploration and through-the-Earth (TTE) wireless communications. In this study, we develop an explicit form of magnetic field over multi-layer Earth medium (N > 3). The generalized solution is derived for operating frequency, mine depth, and Earth conductivity that would be typically related to TTE applications.
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