平面近场测量中一种极化探头补偿算法研究  

Research on a polarization probe compensation algorithm in planar near⁃field measurement

作　　者：刘伟康 贾云飞[1] 刘星汛 LIU Weikang;JIA Yunfei;LIU Xingxun(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Beijing Institute of Radio Metrology and Measurement,Beijing 100085,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]北京无线电测量研究所,北京100085

出　　处：《电子设计工程》2025年第1期36-40,共5页Electronic Design Engineering

摘　　要：为研究天线特性,该研究采用近场测量技术计算天线的远场方向图,该技术具有成本低、速度快的优势。考虑到平面近场测量中探头参数对远场方向图的影响,该研究基于平面近远场变换算法,引入探头补偿技术和极化补偿技术。利用HFSS仿真得到待测天线远场仿真方向图,通过计算机算法构建,将近远场变换算法所得方向图与实际测得的远场方向图进行比较,验证算法的准确性。进一步结合极化补偿算法与探头补偿算法,与未修正的结果及远场方向图进行对比。结果显示,极化探头补偿算法能有效修正探头对远场方向图的影响,其不确定度超过近远场变换算法1.4295 dB,超过极化补偿算法0.9062 dB,确保了研究的客观性和独立性。To study the characteristics of antennas,this paper employs near⁃field measurement techniques to compute the far⁃field radiation pattern of the antenna,offering the advantages of low cost and speed.Recognizing the influence of probe parameters in planar near⁃field measurements on the far⁃field radiation pattern,this research is based on the planar near⁃to⁃far⁃field transformation algorithm,incorporating probe compensation techniques and polarization compensation techniques.Using HFSS simulation,the far⁃field simulated radiation pattern of the antenna under test is obtained.By constructing the algorithm,the radiation pattern obtained from the near⁃to⁃far⁃field transformation algorithm is compared with the actual measured far⁃field radiation pattern to verify the accuracy of the algorithm.Further combined with polarization compensation and probe compensation algorithms,comparisons are made with uncorrected results and far⁃field radiation patterns.The results indicate that the polarization probe compensation algorithm can effectively correct the influence of the probe on the far⁃field radiation pattern.Its uncertainty exceeds the near⁃to⁃far⁃field transformation algorithm by 1.4295 dB and the polarization compensation algorithm by 0.9062 dB,ensuring the objectivity and independence of the research.

关 键 词：天线近远场变换 探头补偿算法 极化补偿算法 天线平面近场仿真 

分 类 号：TN82[电子电信—信息与通信工程]