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|Title:||Dominant lateral waves of radio communication in layered anisotropic forest environment|
|Authors:||Li, L.-W. |
|Source:||Li, L.-W.,Lee, C.-K.,Yeo, T.-S. (2001). Dominant lateral waves of radio communication in layered anisotropic forest environment. Asia-Pacific Microwave Conference Proceedings, APMC 2 : 569-572. ScholarBank@NUS Repository.|
|Abstract:||A four-layered forest geometry with two anisotropic slabs representing canopy and trunk is used for the investigation of wave characteristics in forest environment. Propagation of radio waves is examined in which the transmitter is embedded inside the canopy layer, while the receiving point is located in the trunk layer. Dyadic Green's functions in their eigenfunction expansion forms for planarly layered anisotropic media are applied to analyze this problem. The analytical close forms of these electric fields are then obtained by using the saddle point techniques, and branch cut integrations in the complex plane and, hence, expressed in terms of direct waves, multiple reflected waves, and lateral waves. Propagation mechanisms of these waves are studied and radio losses in a typical forest are calculated numerically.|
|Source Title:||Asia-Pacific Microwave Conference Proceedings, APMC|
|Appears in Collections:||Staff Publications|
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