Study of High-Frequency Electromagnetic Transients Radiated by Electric Dipoles in Near-Field

Ravelo, B. and Liu, Y. and Louis, A. and Jastrzebski, A.K. (2011) Study of High-Frequency Electromagnetic Transients Radiated by Electric Dipoles in Near-Field. IET Microwaves, Antennas & Propagation, 5 (6). pp. 692-698. ISSN 1751-8725. (The full text of this publication is not available from this repository)

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Abstract

The study investigates transient electromagnetic (EM) radiation in the near-field zone of a system of electric dipoles and the usage of the plane wave spectrum (PWS) concept for extraction of a 3-D field from 2-D measurements. Both aspects are important in the modelling and characterisation of radiated emissions in electromagnetic compatibility applications, which are extended here to time domain. Analytical expressions for a set of dipoles excited by short-duration Gaussian pulses, which in the author’s approach are used to model EM radiation, are presented and implemented into a Matlab program to calculate the time-dependent distributions of the three electric field components Ex(t), Ey(t), Ez(t). These results are then used to verify the new technique of extraction of the time-domain component Ez(t) of the electric field from measurements of the two other components, Ex(t) and Ey(t). The details of the technique, based on PWS method applied to the time domain, are presented. Very good agreement between the extracted and analytically calculated fields has been achieved. Further verification and comparison has been done by the simulation in the time domain of the system of dipoles using commercial 3-D EM software.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics (see also: telecommunications)
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: J. Harries
Date Deposited: 15 Sep 2011 14:29
Last Modified: 15 Sep 2011 14:29
Resource URI: http://kar.kent.ac.uk/id/eprint/28167 (The current URI for this page, for reference purposes)
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