单极化线形智能天线阵小型化技术研究  

Study of Single-Polarization Linear Smart Antenna Array Miniaturization Technology

作　　者：陈伟[1,2] 郝宏刚[1] 景小荣[2,3] 张祖凡[2] 卢化晓[1] 

机构地区：[1]重庆邮电大学光电工程学院,重庆400065 [2]重庆邮电大学移动通信技术重点实验室,重庆400065 [3]中国电子科技集团公司第54研究所通信网信息传输与分发技术重点实验室,河北石家庄050081

出　　处：《电视技术》2012年第3期87-90,共4页Video Engineering

基　　金：中国电子科技集团公司第54研究所通信网信息传输与分发技术重点实验室开放课题(ITD-U10005);重庆市科技攻关项目(CSTS;2010AC2143);重庆市教委科研项目(KJ110526)

摘　　要：智能天线可以显著地提高移动通信系统的整体性能,然而,受施工、选址及环保等因素的限制,基站端智能天线采用小型化设计已成为一种趋势。设计了一款8单元(8通道)单极化线形智能天线阵。借助仿真软件,分析了单元间距对天线阵性能及小型化的影响。研究结果表明,在满足设计指标的前提下,单元间距为45 mm的紧凑型等间距线形智能天线阵的增益下降3 dB,半功率主瓣宽度增加了9,横向电尺寸减少31.11%。采用非等间距可以使智能天线阵的第一副瓣电平降低5～7 dB,横向电尺寸减少9.18%～20%。The smart antenna can dramatically improve mobile communication system performance. However, by the limited of construction, location, environmental protection and so on, the smart antenna which is used in base station adopting miniaturized design has became a trendence. In this article, a 8 units （8 channels） linear smart antenna array is designed by using simulation software, and analysis of the antenna array＇ s performance and miniatur- ization which influenced by unit spacing. The results of the study show that, on the premise of meet the design indexes, the gain of compact equal spacing linear smart antenna array which unit spacing is 45 mm decline 3 dB, half power beam width of main lobe increase 9, but horizontal electric sizes cut 31.11% ; the first side lobe of antenna array can be reduced 3 -7 dB by using of unequal spacing, and horizontal electric size decreases 9. 18% -20%.

关 键 词：单极化 线形 智能天线阵 小型化 

分 类 号：TN821.91[电子电信—信息与通信工程]