Investigations Of Controlling Propagation Characteristics Using

This work proposes a propagation control technique for mobile communications in microcellular environment. Transmitting array antennas at the base station are utilized for controlling propagation characteristics. The propagation control technique can be used for interference reduction between neighboring cells and controlling the coverage area size (e.g., controlling propagation slope). Five propagation control methods are suggested. Three schemes are tested here, the antenna arrangement, the phase excitations and the displacements between antennas