Far-region electromagnetic radiation with a vertical magnetic dipole in sea

Author

Long, Yunliang ; Jiang, Hongyan ; Rembold, Bernhard

Author_Institution

Dept. of Electron., Zhongshan Univ., Guangzhou, China

Volume

49

Issue

6

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

992

Lastpage

996

Abstract

Great attention has been paid to conveniently calculating the electromagnetic (EM) field due to a vertical magnetic dipole (VMD) buried in stratified media. It is quite difficult because this topic involves the computation of Sommerfeld (1949) type integrals (SI). In this paper closed-form expressions for the far field of a VMD embedded below the sea surface are obtained easily by using a new technique to evaluate the SI with the aid of complex image theory. The present approach can be also used to get the far field formulas for other similar cases

Keywords

approximation theory; dipole antennas; electromagnetic fields; inhomogeneous media; integral equations; radiowave propagation; seawater; EM field; EM wave propagation; Sommerfeld-type integrals; closed-form expressions; complex image theory; electromagnetic field; far field formulas; far-field approximation; far-region electromagnetic radiation; sea; sea surface; seawater; stratified media; vertical magnetic dipole; Antennas and propagation; Closed-form solution; Dipole antennas; Electromagnetic fields; Electromagnetic radiation; Frequency; Geophysics computing; Nonhomogeneous media; Sea surface; Underwater communication;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.931158

Filename

931158