Title :
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
fDate :
6/1/2001 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
