NDLI: Impulsive Radiation From a Horizontal Electric Dipole Above an Imperfectly Conducting Surface

Content Provider	IEEE Xplore Digital Library
Author	Chee Heun Lam
Copyright Year	1963
Abstract	Solutions for the impulsive wave fields generated by a horizontal electric dipole situated above an imperfectly conducting surface are derived. The space-time expressions for the reflected wave fields open the door to analysis of their properties in the far-, intermediate-, and near-field regions, and can serve as benchmark for numerical methods employed to wave simulation with applications in antenna design and radio communication. The EM properties of the conductive material are represented by a surface impedance and translated to the wave motion via employing the local plane wave relation as the boundary condition. At the core of tackling the impedance boundary value problem is the derivation of three space-time reflected-wave Green's functions. In contrast to the vertical electric dipole problem, a coupling term is present in the transform-domain wave solutions, and hinders direct application of the extended Cagniard-De Hoop method. A partial-fraction decomposition of this coupling term is the key to furnishing the transformation back to the time domain. Numerical results illustrate time traces and spectra of the measurable reflected electric field strength.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	4795
Ending Page	4803
Page Count	9
File Size	2763780
File Format	PDF
ISSN	0018926X
Volume Number	60
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance Time domain analysis Couplings Surface waves Surface impedance Green's function methods Admittance impulsive wave reflection Horizontal electric dipole impedance boundary condition imperfectly conducting surface
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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