Cross-polarisation discrimination studies of single trees at 20 and 62.4GHz

This study addresses the characterisation of cross-polarisation discrimination of re-radiated signals from natural trees performed in the vicinity around deep signal fades. Results presented in this study will explain the signal behaviour observed in the various regions around the tree. This has bee...

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Bibliographic Details
Published in:IET microwaves, antennas & propagation antennas & propagation, 2017-04, Vol.11 (5), p.695-704
Main Authors: Caldeirinha, Rafael FS, Al-Nuaimi, Miqdad O
Format: Article
Language:English
Subjects:
Absorption
Discrimination
Environment models
Mathematical analysis
Mathematical models
Microwave antennas
Scatter
Trees
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Summary:This study addresses the characterisation of cross-polarisation discrimination of re-radiated signals from natural trees performed in the vicinity around deep signal fades. Results presented in this study will explain the signal behaviour observed in the various regions around the tree. This has been addressed in this study through a combination of analytical and experimental modelling based on thorough examination of the re-radiation functions of single trees and appropriate measurements performed under controlled environments, at 20 and 62.4GHz. The identification of three distinct regions of interest in the scatter (re-radiated) field is discussed in this study, where it is shown that depolarisation, in addition to absorption and scatter, is an important factor formulating accurate models for propagation in vegetation media.
ISSN:1751-8725
1751-8733
DOI:10.1049/iet-map.2016.0571