Title :
Adaptive antennas employing vertical pattern control for street microcell
Author :
Cho, K. ; Nishimori, Kentaro ; Takatori, Y. ; Hori, T.
Author_Institution :
Nippon Telegraph, Japan
Abstract :
The paper first presents the measured results of the dependency of the angle of arrival (AOA) and delay profile on terminal locations when a base station is placed on the roof top of a building in a street cell. Then, it is shown that an adaptive antenna employing pattern control in the vertical plane can enlarge the cell size with the same delay reduction as an ordinary tilt antenna. In addition, the influence of a bidirectional pattern in the horizontal plane, which can further enlarge the cell size, is investigated, and a suitable antenna configuration for placing the base stations at a high location is proposed.
Keywords :
adaptive antenna arrays; antenna radiation patterns; delays; microcellular radio; telecommunication control; adaptive antennas; angle of arrival; antenna configuration; base station; bidirectional pattern; building roof top; cell size; delay profile; delay reduction; horizontal plane; street cell; street microcell; terminal locations; vertical pattern control; vertical plane; Adaptive arrays; Adaptive control; Antenna measurements; Base stations; Delay; Programmable control; Size control;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.702019
