移动通信
移動通信
이동통신
MOBILE COMMUNICATIONS
2015年
14期
45-48
,共4页
天线架设%测量误差%相位中心
天線架設%測量誤差%相位中心
천선가설%측량오차%상위중심
antenna placement%measurement errors%phase center
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。
分析瞭在移動通信基站天線架設過程中天線相位中心偏離轉檯轉軸中心對天線測試的影響，採用理論分析與實測相結閤，實測結果錶明：天線相位中心偏離轉軸中心時主要引起方嚮圖角度誤差，導緻波寬偏窄；併通過實測驗證瞭金屬桿對天線測試的影響，數據顯示：金屬桿對置于支撐桿的頂部的低增益天線（如室分天線、喇叭天線等）影響較大，而對抱于支撐桿上的高增益天線（如基站天線）幾乎沒影響，該分析為科學閤理地架設天線提供瞭數據依據。
분석료재이동통신기참천선가설과정중천선상위중심편리전태전축중심대천선측시적영향，채용이론분석여실측상결합，실측결과표명：천선상위중심편리전축중심시주요인기방향도각도오차，도치파관편착；병통과실측험증료금속간대천선측시적영향，수거현시：금속간대치우지탱간적정부적저증익천선（여실분천선、나팔천선등）영향교대，이대포우지탱간상적고증익천선（여기참천선）궤호몰영향，해분석위과학합리지가설천선제공료수거의거。
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 veriifed through actual measurement that metal bar has a signiifcant 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 scientiifc placement of antenna.
