NDLI: Microwave Propagation Modeling and Measurement of Scattering and Absorption Inside a Canopy Using the FDTD Technique

Content Provider	IEEE Xplore Digital Library
Author	Caldeirinha, R.F.S. Al-Nuaimi, M.O.
Copyright Year	1963
Abstract	This paper proposes a novel method aimed at modeling microwave scattering and absorption inside a canopy, arising from the interaction with the individual components of the vegetation specimen, starting from primary models for leaves, trunk and branches. The method is based on the finite-difference time-domain (FDTD) technique to predict the 3-dimensional re-radiation fields of the entire tree, by combining the effects of the single elements forming the tree. Appropriate measurements performed in an anechoic chamber environment at microwave frequencies, i.e. 20 GHz, and in the forward scattering region, provided both model validation and a deeper insight into the problem. The model is shown to be capable of predicting the near-field radiated signal and the radar cross section (RCS). The predictions yielded good agreement with measurements and provides a good basis for a planning model capable of accounting for single trees in the radio path.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	280
Ending Page	293
Page Count	14
File Size	5062698
File Format	PDF
ISSN	0018926X
Volume Number	63
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Permittivity Vegetation Finite difference methods Time-domain analysis Dielectrics Scattering Materials vegetation Absorbing media dielectric measurements finite difference methods microwave radio propagation scattering
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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