Mechanical accuracy measuring and electrical performance validation for high-precision compact antenna test range
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摘要: 根据天线型面精度的确定依据,建立了以半光程差为最小量的型面精度计算模型,据此编写了天线面板测调程序,对高精度紧缩场的型面精度进行了检测,并采用自由拟合的方法对馈源进行了定位,通过机械精度检测,该紧缩场反射面型面静区精度达到 26 μm,机械精度达到理论和设计要求.最终的电气测试结果表明该紧缩场在26~110 GHz时具有优良的电气性能,验证了天线机械精度检测结果的正确性.该方法使机械装调效率显著提高,具有重要的工程应用价值.Abstract: Based on the deterministic basis of the surface accuracy for the antenna, computational modeling with the semi-optical path difference as minimum value was established. As a result, a software program for surface measurement and adjustment of reflector antenna was developed. The surface accuracy of the high-precision reflector antenna was measured and antenna feed was positioned using free fixing. The surface accuracy of central zone for the large parabolic reflector antenna is 26 μm. Electrical performance test results show that the compact range has excellent electrical performance in the frequency of 26~110 GHz, and verify the correctness of the mechanical accuracy test results. This technique not only improves the efficiency of mechanical alignment significantly, but also possesses potential applicable value in engineering.
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[1] Olver A D.Compact antenna test ranges[C]//ICAP 91.Seventh International Conference on Antennas and Propagation.London: IEE, 1991:99-108 [2] Karttunen A, Ala-Laurinaho J, Vaaja M, et al.Antenna tests with a hologram-based CATR at 650 GHz[J].IEEE Trans on Antennas and Propagation, 2009, 57(3):711-720 [3] Iversen P, Boumans M, Burgos S.Mini compact range for automotive radar antenna testing[C]//6th European Conference on Antennas and Propagation(EUCAP).Prague:IEE, 2012: 2240-2243 [4] 全绍辉, 何国瑜, 徐永斌, 等.一种高性能反射面紧缩场[J].北京航空航天大学学报, 2003, 29(9):767-769 Quan Shaohui, He Guoyu, Xu Yongbin, et al.High performance single reflector compact range[J].Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(9):767-769(in Chinese) [5] Johnson R C, Ecker H A, Moore R A.Compact range techniques and measurements[J].IEEE Transactions on Antennas and Propagation, 1969, 17(5):568-576 [6] 李宗春, 李广云, 金超.面天线检测数据处理方法的探讨[J].宇航计测技术, 2003, 23(2):12-19 Li Zongchun, Li Guangyun, Jin Chao.On the data processing methods of surface antenna's calibration[J].Journal of Astronautic Metrology and Measurement, 2003, 23(2):12-19(in Chinese) [7] 陈继华, 李广云.离散点的抛物面拟合研究[J].无线电工程, 2005, 35(4):39-43 Chen Jihua, Li Guangyun.The study on paraboloid fitting of discrete points[J].Radio Engineering of China, 2005, 35(4):39-43(in Chinese) [8] 王伟, 段宝岩, 马伯渊.一种大型反射面天线面板测试与调整方法及其应用[J].电子学报, 2008, 36(6):1114-1118 Wang Wei, Duan Baoyan, Ma Boyuan.A method for panel adjustment of large reflector antenna surface and its application[J].Acta Electronica Sinica, 2008, 36(6):1114-1118(in Chinese) [9] 王兆峻, 陈五一.大型紧缩场反射面板的变形分析与控制[J].航空学报, 2004, 25(4): 416-419 Wang Zhaojun, Chen Wuyi.The deformation analysis and control of compact antenna range reflecting panel[J].Acta Aeronautica et Astronautica Sinica, 2004, 25(4):416-419(in Chinese) [10] 周贤宾, 郝长岭, 李东升, 等.高精度反射面板的形面调节新技术[J].北京航空航天大学学报, 2009, 35(2):127-131 Zhou Xianbin, Hao Changling, Li Dongsheng, et al.New technique of contour adjustment for high precision reflector panels[J].Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(2):127-131(in Chinese) [11] Ruze J.Antenna tolerance theory:a review[J].Proceedings of the IEEE, 1966, 54(4):633-642 [12] 王从思, 段宝岩, 仇原鹰.基于最小二乘法的天线变形反射面的拟合[J].现代雷达, 2004, 26(10):52-55 Wang Congsi, Duan Baoyan, Qiu Yuanying.Fitting of distorted reflector antenna surface based on least square method[J].Modern Radar, 2004, 26(10):52-55(in Chinese) [13] 周国锋, 李晓星.基于半光程差的天线反射面型面精度检测[J].北京航空航天大学学报, 2010, 37(6):723-727 Zhou Guofeng, Li Xiaoxing.Base on semi-optical path difference of antenna reflector surface accuracy detection[J].Journal of Beijing University of Aeronautics and Astronautics, 2010, 37(6) :723-727(in Chinese) [14] Bahadori K, Rahmat-Samii Y.Characterization of effects of periodic and aperiodic surface distortions membrane reflector antennas[J].IEEE Transactions on Antennas and Propagation, 2005, 53(9):2782-2791 [15] Anderson L J, Groth L H.Reflector surface deviations in large parabolic antennas[J].IEEE Transactions on Antennas and Propagation, 1963, 11(2):148-152 [16] Rahmat-Samii Y.An efficient computational method of characterizing the effects of random surface errors on the average power pattern of reflectors[J].IEEE Transactions of Antennas and Propagation, 1983, 31(1):92-98 [17] 李宗春, 李广云.天线几何量测量理论及其应用[M].北京:测绘出版社, 2009 Li Zongchun, Li Guangyun.Measuring theory, technique and application of antenna[M].Beijing:Surveying and Mapping Press, 2009(in Chinese) [18] Butler B P, Forbes A B, Harris P M.Algorithms for geometric tolerance assessment[R].B0018QIC00, 1994 [19] 陆佳艳, 瞿剑苏.复合材料天线反射面的测量与分析[J].计测技术, 2012, 32(4):42-44 Lu Jiayan, Qu Jiansu.Measurement and analysis of composite antenna reflector[J].Metrology & Measurement Technology, 2012, 32(4):42-44(in Chinese) [20] 宋立伟, 段宝岩, 郑飞.变形反射面天线馈源最佳相位中心的研究[J].北京理工大学学报, 2009, 29(10):894-897 Song Liwei, Duan Baoyan, Zheng Fei.A study on the optimal feeds phase center for distorted reflector antennas[J].Transactions of Beijing Institute of Technology, 2009, 29(10):894-897(in Chinese) [21] 全绍辉, 何国瑜, 徐永斌, 等.大型紧缩场电气性能检测[J].微波学报, 2003, 19(2):77-80 Quan Shaohui, He Guoyu, Xu Yongbin, et al.Electrical performance testing for large compact range[J].Journal of Microwaves, 2003, 19(2):77-80(in Chinese)
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