On-body propagation loss estimation using method of equivalent sources

Author

Dubrovka, R. ; Parini, C. ; Hao, Y. ; Alomainy, A. ; Hall, P. ; Constantinou, C. ; Nechayev, Y.

Author_Institution

Electron. Eng. Dept., Queen Mary Univ. of London, UK

Volume

42

Issue

9

fYear

2006

fDate

4/27/2006 12:00:00 AM

Firstpage

506

Lastpage

508

Abstract

A new method for the fast estimation of the on-body propagation loss is proposed. The method is applicable for a variety of propagation models but limited by a far-field zone observation point. The technique is based on the equivalent source theorem. Knowing the propagation losses for an infinitesimal current source, propagation losses of real antennas can be obtained with only the knowledge of their equivalent currents over a surface surrounding the antenna. The method can be applied for any kind of excitation signals and offers reduction in simulation time. It has been verified using both monochromatic and Gaussian pulse excitation and good agreement is obtained compared with a full conventional FDTD model with a simple antenna.

Keywords

estimation theory; finite difference time-domain analysis; radiowave propagation; FDTD model; Gaussian pulse excitation; equivalent sources method; far-field zone observation point; infinitesimal current source; monochromatic excitation; on-body propagation loss estimation; propagation models;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20060630

Filename

1628516