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�������պ����ѧѧ�� 2005, Vol. 31 Issue (11) :1181-1184    DOI:
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Design and determination for the front fed Cassegrain compact range
Chen Haibo, He Guoyu*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� In theory, simulation and experiment, it was proved that the cross-polarization is eliminated in geometric-optics condition when the geometries ofthe front fed Cassegrain compact range satisfy the Mizugutch condition. The optimization rule on the layout and serration of the compact range was referred to, then the optimization algorithm was performed and the result was given. The front fed Cassegrain compact range (the mode K2010) was developed. The amplitude character, phase character and cross-polarization character of the quiet zone were determined in X band, Ku band and Ka band, which was compared to the calculation results with the PO(physical optics) method. The performance of K2010 was analyzed from the simulation and experimental results. Compared to other types of compact range, the front fed Cassegrain compact range provides larger quiet zone and lower polarization, which satisfies the requirement to the polarization purity in the satellite test and polarization matrix measurement.
Keywords�� compact range   front fed Cassegrain   cross-polarization   Mizugutch condition     
Received 2004-07-26;
About author: �º���(1978-),��,���ֳ�����,��ʿ��, herbertchb@hotmail.com.
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�º���, �ι��.ǰ���������׽������������[J]  �������պ����ѧѧ��, 2005,V31(11): 1181-1184
Chen Haibo, He Guoyu.Design and determination for the front fed Cassegrain compact range[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2005,V31(11): 1181-1184
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