天线架设方式对天线测试的影响浅析  

Discussion on Impact of Antenna Placement on Antenna Testing

作　　者：张申科 邓遥林 

机构地区：[1]武汉虹信通信技术有限责任公司,湖北武汉430000

出　　处：《移动通信》2015年第14期45-48,共4页Mobile Communications

摘　　要：分析了在移动通信基站天线架设过程中天线相位中心偏离转台转轴中心对天线测试的影响,采用理论分析与实测相结合,实测结果表明:天线相位中心偏离转轴中心时主要引起方向图角度误差,导致波宽偏窄;并通过实测验证了金属杆对天线测试的影响,数据显示:金属杆对置于支撑杆的顶部的低增益天线(如室分天线、喇叭天线等)影响较大,而对抱于支撑杆上的高增益天线(如基站天线)几乎没影响,该分析为科学合理地架设天线提供了数据依据。The impact of antenna phase center＇s deviation from the axis of the turntable on antenna testing was analyzed in the process of BTS antenna placement. Combined theoretical analysis with actual measurement, it was demonstrated that the antenna phase center＇s deviation from the axis of the turntable often results in angle error of direction pattern and narrow lobe width. The impact of metal bar on antenna testing was verified through actual measurement that metal bar has a significant impact on low gain antenna （such as indoor distributed antenna and horn antenna） placed on the top of the metal bar, but has almost no impact on high gain antenna （such as BTS antenna） surround the metal bar. It provides data supports for scientific placement of antenna.

关 键 词：天线架设 测量误差 相位中心 

分 类 号：TN820[电子电信—信息与通信工程]