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International Journal of Antennas and Propagation
Volume 2016, Article ID 8601497, 8 pages
http://dx.doi.org/10.1155/2016/8601497
Research Article

An Optimal Electric Dipole Antenna Model and Its Field Propagation

1College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
2School of Engineering, Far Eastern Federal University, Vladivostok 690950, Russia

Received 4 February 2016; Revised 5 March 2016; Accepted 17 April 2016

Academic Editor: Christoph F. Mecklenbräuker

Copyright © 2016 Yidong Xu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An optimal electric dipole antennas model is presented and analyzed, based on the hemispherical grounding equivalent model and the superposition principle. The paper also presents a full-wave electromagnetic simulation for the electromagnetic field propagation in layered conducting medium, which is excited by the horizontal electric dipole antennas. Optimum frequency for field transmission in different depth is carried out and verified by the experimental results in comparison with previously reported simulation over a digital wireless Through-The-Earth communication system. The experimental results demonstrate that the dipole antenna grounding impedance and the output power can be efficiently reduced by using the optimal electric dipole antenna model and operating at the optimum frequency in a vertical transmission depth up to 300 m beneath the surface of the earth.