Title :
The study on geometrical structure of adaptive array implemented in CDMA system
Author :
Ma, WenHua ; Wang, Huazhi ; Zha, Mingyong
Author_Institution :
Coll. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
The system model of adaptive array employed in CDMA system was established. First, this paper studied the geometrical structure of array and obtained the optimum range of ρ. Second, the circular and linear array composed of directional elements was studied. The results showed that the circular array composed of directional elements has no higher gain than that composed of omnidirectional elements; the linear array composed of directional elements has higher gain than that composed of omnidirectional elements within some angle range and so can be employed in sector cell
Keywords :
adaptive antenna arrays; antenna theory; code division multiple access; directive antennas; linear antenna arrays; CDMA system model; adaptive array; circular array; directional element; gain; geometrical structure; linear array; omnidirectional element; Adaptive arrays; Adaptive systems; Educational institutions; Equations; Interference; Linear antenna arrays; Multiaccess communication; Phased arrays; Solid modeling; Vectors;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.833716
