Title :
Foliage loss measurements of tropical trees at 35 GHz
Author :
Joshi, Sunil ; Sancheti, Sandeep
Author_Institution :
Deptt of ECE, Udaipur., New Delhi
Abstract :
The presence of foliage in the propagation channel can lead to severe signal attenuation, and thus the effects of vegetation in the propagation environment need to be considered in any prediction model. In the present work, a measurement study is undertaken to quantify the attenuation caused due to tree canopies, at 35 GHz. The trees prevailing in typical Indian deserts, having variation in the leaf size and leaf density along the tree canopy are included in the study and in each case, attenuation characteristics are reported. The results presented in the paper may be of vital importance for radio cell planning operating at millimeter wave frequency.
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; millimetre wave measurement; millimetre wave propagation; vegetation; Indian deserts; attenuation characteristics; foliage loss measurement; frequency 35 GHz; leaf density; leaf size; millimeter wave frequency; propagation channel; signal attenuation; tree canopy; tropical trees; vegetation effects; Attenuation measurement; Frequency; Loss measurement; Predictive models; Propagation losses; Radio transmitters; Receivers; Testing; Tree graphs; Vegetation; Foliage; Milimeter wave; Tropical tree;
Conference_Titel :
Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on
Conference_Location :
Jaipur
Print_ISBN :
978-1-4244-2690-4
Electronic_ISBN :
978-1-4244-2691-1
DOI :
10.1109/AMTA.2008.4763121