... part of the activities of the Department of Electromagnetic Field of the Czech Technical Universityin Prague within the framework of the research Project of the Ministry of Education, Youth, and ... −dmain/ddiv2·dmainddivcconst,(1)where ϑ (rad) and dmain/ddiv(–) stand for the angleseparation and the ratio of the main and diverse link lengths,respectively. aconst, bconst,andcconstare empirical parameters,that ... NetworkingVolume 2008, Article ID 734216, 7 pagesdoi:10.1155/2008/734216Research Article A Study of Gas and Rain Propagation Effects at48 GHz for HAP ScenariosS. Zvanovec, P. Piksa, M. Mazanek, and P. PechacDepartment...