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Proceedings Paper

Millimetre wave propagation through vegetation
Author(s): H. Essen; D. Nüßler; N. Von Wahl; S. Heinen
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Paper Abstract

Propagation of electromagnetic waves through canopies of wood are of interest for he choice of operating frequencies for microwave based sensors of different kind. It is known that in general the propagation properties become worse with higher frequency. Especially the upper millimeterwave bands are severely attenuated by leaves. Measurements were conducted during a period in spring on a transmission path through an apple tree. The measurement period covered states of the tree ranging from leave-less over blooming to fully developed leaves on the branches. Three frequency bands were covered, namely 10 GHz, 35 GHz and 94 GHz. To allow a concise judgment of the data, meteorological measurements were done in parallel.

Paper Details

Date Published: 1 October 2009
PDF: 7 pages
Proc. SPIE 7476, Optics in Atmospheric Propagation and Adaptive Systems XII, 747606 (1 October 2009); doi: 10.1117/12.829259
Show Author Affiliations
H. Essen, FGAN-Forschungsinstitut für Hochfrequenzphysik und Radartechnik (Germany)
D. Nüßler, FGAN-Forschungsinstitut für Hochfrequenzphysik und Radartechnik (Germany)
N. Von Wahl, FGAN-Forschungsinstitut für Hochfrequenzphysik und Radartechnik (Germany)
S. Heinen, FGAN-Forschungsinstitut für Hochfrequenzphysik und Radartechnik (Germany)


Published in SPIE Proceedings Vol. 7476:
Optics in Atmospheric Propagation and Adaptive Systems XII
Anton Kohnle; Karin Stein; John D. Gonglewski, Editor(s)

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