摘要
讨论了平面波展开及其近远场变换的基本原理,并在近场自动测量系统上,对一偏馈照射,且工作于多个频段的低副瓣星载遥感天线进行了测试计算.近场测量结果与理论计算吻合甚好,-35dB电平以上误差小于1dB,且天线各种电参数都有相当的精度.这表明平面近场测量不失为一种高精度的现代测量新技术.
The Basic theory of near field to far field transformation and the Planar Wave expansion are discussed. A remote sensing antenna with the low side lobe and the offset feed illuminated and working on frequency bands is measured by the near field measurement system. The measurement results are in agreement with the theoretic calculation. The measurement error are less than 1 dB on the -35 dB side level, and there is a certain accuracy for the other electric parameters under test of this antenna. It is shown that the planar near field measurement method is the modern measurement technique with high accuracy.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2000年第1期115-118,共4页
Journal of Xidian University
基金
军事电子预研基金资助项目
关键词
平面波展开
近场测量
星载遥感天线
planar wave expansion
near far field transformation
antenna near field measurement
