测量材料吸收毫米波性能的新型探头  

A Novel Probe for Measurement of Absorbing-Material Performance in MMW Band

作　　者：王东[1] 颜锦奎[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《通信技术》2010年第10期150-152,共3页Communications Technology

摘　　要：提出了用于测量吸波材料吸收雷达波性能的新型探头。引入高次模,采用相位分析法,克服了多变量干扰,简化计算。在固定区间求偏差和方差最小值,得到平缓电场。仿真结果证明新型探头口径电场平缓,波动小,近似平面波。新型探头的平面波范围与口径比为53%,比现有厘米波探头扩大了17.2%,能精确地模拟雷达对材料的辐射,减小测量误差。此探头尺寸较小,可广泛应用于户外测量材料吸收毫米波雷达电磁波的性能。This paper presents a novel probe for measurement of absorbing-material the performance of radar waves.Higher-mode is introduced and the phase analyzing method is proposed in the design.Its application overcome the disturbance of multi-variables,simplifies the calculation.To achieve the goal of slow E-field in aperture,the minimum bias and minimum variation method in specified region are employed.The simulation indicates that the E-field of novel probe is gentle and less in fluctuation,similar to planar-wave.The ratio of the planar-wave region to aperture is 53%,and the region is enlarged by 17.2% as compared with the centimeter wave probe available.This novel probe could accurately simulate the radiation of radar wave to the absorbing materials,and the bias of the measurement could be reduced accordingly.The probe is small in size and could be applied to the outdoor measurement of the absorbing-material performance in absorbing millimeter waves of radar.

关 键 词：毫米波 平面波 盒式喇叭天线 探头 

分 类 号：TM931[电气工程—电力电子与电力传动]