Adaptive array antenna for mobile communication

被引：9
|
作者：
Chiba, I [1 ]
Yonezawa, R [1 ]
Kihira, K [1 ]
机构：
[1] Mitsubishi Elect Corp, Kamakura, Kanagawa 2478501, Japan
来源：
2000 IEEE INTERNATIONAL CONFERENCE ON PHASED ARRAY SYSTEMS AND TECHNOLOGY, PROCEEDINGS | 2000年
关键词：
D O I：
10.1109/PAST.2000.858920
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Digital beam forming (DBF) antennas are developing as advanced phased array antennas. The microwave signal received at each element antenna of the DBF array antenna is converted to a digital signal after down-converting. Beam-forming is carried out in a digital processor, so both excitation amplitudes and phases can be controlled more precisely in the DBF than in the conventional phased array antenna(Fig.1). The DBF also has the advantage of adaptive array antenna signal processing. This allows the nulls of an antenna radiation pattern to be steered in the directions of interference signals. Adaptive array antennas are applied to the base station antennas of mobile communications. In this presentation, in TDMA and CDMA communication systems, the adaptive array antenna fit to each system is shown.
引用
收藏
页码：109 / 112
页数：4
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