A Closed-Form Solution for ELF Radiated Fields of a Line-Current Antenna in Earth-Ionosphere Waveguide

Author

Liu Chao ; Zheng Long-gen ; Li Yong-Pin

Author_Institution

Electron. Eng. Coll., Naval Univ. of Eng., Wuhan, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

The empirical formulas for extremely low frequency (ELF) radiated fields of a line-current antenna grounding at each end in the Earth-ionosphere waveguide have been given in some literatures. But the derivation of the radiated fields in spherical waveguide is mathematically not strict. In this paper, a scalar wave function is used in mode theory of wave propagation to closely solve ELF radiated field of a vertical electric dipole (VED) located in the spherical Earth-ionosphere waveguide. The closed-form formulas for the radiated fields of a line-current antenna grounding at each end are obtained by an application of the reciprocity theorem.

Keywords

Earth-ionosphere waveguide; antenna radiation patterns; circular waveguides; dipole antennas; waveguide antennas; ELF radiated field; VED antenna; closed-form formula; extremely-low-frequency radiated field; line-current antenna; reciprocity theorem; scalar wave function; spherical Earth-ionosphere waveguide; vertical electric dipole antenna; wave propagation theory; Antenna theory; Antennas and propagation; Closed-form solution; Dipole antennas; Frequency; Geophysical measurement techniques; Ground penetrating radar; Grounding; Wave functions; Waveguide theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5301548

Filename

5301548