Title :
Distributed local loop configuration of array antenna for CDMA cellular base station
Author :
Takeuchi, Y. ; Hirayama, H. ; Murayama, T. ; Notsu, Y. ; Hayashi, A.
Author_Institution :
Mitaka Lab., Japan Radio Co. Ltd., Tokyo, Japan
Abstract :
We have designed a new type of CDMA array antenna with distributed processing using a local loop data transmission system over its sub-array antenna components. We have assembled a prototype array antenna. Outdoor equipment is covered by a conformal arrangement of sub-array elements on an 18th surface polygon structure. Transmitter and receiver components are located inside of the 18th polygon at just the backside of each sub-array elements. We investigated its operation and confirmed that the desired (transmit and receiving) antenna radiation patterns were formed independently
Keywords :
adaptive antenna arrays; antenna radiation patterns; cellular radio; code division multiple access; conformal antennas; radio access networks; receiving antennas; transmitting antennas; CDMA cellular base station; adaptive antenna array; conformal arrangement; distributed local loop configuration; distributed processing; local loop data transmission system; outdoor equipment; polygon structure; prototype array antenna; receiver components; receiving antenna radiation patterns; sub-array antenna components; sub-array elements; test equipment; transmitter components; transmitting antenna radiation patterns; Antenna accessories; Antenna arrays; Assembly; Data communication; Distributed processing; Multiaccess communication; Prototypes; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851702
