NDLI: Modeling and Simulation of Near-Earth Propagation in Presence of a Truncated Vegetation Layer

Content Provider	IEEE Xplore Digital Library
Author	DaHan Liao Sarabandi, K.
Copyright Year	1963
Abstract	The far-field radiation from an infinitesimal electric dipole embedded inside a truncated vegetation layer above a dielectric ground plane is calculated in this paper. Through an application of the equivalence or Huygen's principle, a semi-exact solution for the received field at locations exterior to the vegetation layer is obtained by a surface-field integration technique in which the spatial domain of integration is over a plane containing the truncated face of the vegetation canopy. The numerical results are computed using stationary phase approximations and show improvement over those determined through an existing ray-tracing approach. Simulation results are also compared against measured data from controlled experiments carried out within a laboratory environment using a well-characterized scaled-replica of the propagation medium at a proportionally higher frequency. It is shown that ray-tracing provides accurate results at distant points from the vegetation truncation plane when the receiver height is large in terms of the wavelength but slightly underestimates the path loss when the receiver is close to the ground
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	949
Ending Page	957
Page Count	9
File Size	616221
File Format	PDF
ISSN	0018926X
Volume Number	55
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vegetation mapping Electromagnetic propagation Ray tracing Transmitters Dielectrics Finite difference methods Time domain analysis Computational modeling Frequency measurement Wavelength measurement truncated vegetation layer Near-earth wave propagation scaled propagation modeling stationary phase approximation
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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