方向图积分法确定天线增益的截断误差研究  

Study of Truncation Error for Calculating Antenna Gain by Pattern Integration

作　　者：陈辉[1] 秦顺友[1] 

机构地区：[1]信息产业部电子第五十四所,石家庄050081

出　　处：《电子测量与仪器学报》2004年第3期29-32,共4页Journal of Electronic Measurement and Instrumentation

摘　　要：本文简述了利用天线方向图的数值积分确定天线增益的方法 ,讨论了方向图积分的有限区间引起的截断误差。以圆口径天线口面场分布函数为例 ,研究了在不同截断误差情况下 ,天线电尺寸D/λ与方向图积分的最小区间的关系。最后通过大量测试实例验证了理论分析和计算的正确性。Method of calculating antenna gain by pattern numerical integration is described in this paper. Truncation error caused by limited range of integration is discussed in detail. The relation between minimum integral range and antenna electric dimension D/λ is studied in different truncation error value for aperture-field distribution function of circular antenna. Finally, the validity of theoretial analysis and calculation is verified by lots of measured results.

关 键 词：天线方向图 天线增益 口径天线 截断误差 场分布 测试 积分法 有限区间 

分 类 号：TN820.12[电子电信—信息与通信工程]