采用Fourier-Bessel方法计算椭圆口径面天线远场  

Calculation of Far-field of an Elliptical Aperture Reflector Antenna by Fourier-Bessel Method

作　　者：谢苏隆[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《中国空间科学技术》2010年第3期51-54,62,共5页Chinese Space Science and Technology

摘　　要：在卫星和地面天线的应用中,经常需要采用椭圆形口径面天线;与其他方法相比,傅里叶-贝塞尔方法具有计算速度快,数学形式简练,易于理解和应用的优点。文章在物理光学法和圆口径面的基础上,提出了一种椭圆口径面的傅里叶-贝塞尔展开分析方法,适用于抛物面和赋形反射面天线的辐射远场的快速分析和计算,并采用模拟计算与直接积分法相比较,证明了该方法的可靠性和有效性。In the applications of satellite and ground antenna,the reflectors of an elliptical aperture are often used.Compared with other methods,the Fourier-Bessel method is of the advantages of fast calculation,simple math format,easy understanding and application.Based on the PO and circular aperture,a Fourier-Bessel method was developed to calculate and analyze the radiation fields of parabolic and shaped reflectors.Compared with the direct integral method,the reliability and validity of this method was proved.

关 键 词：贝塞尔-雅可比展开方法 傅里叶-贝塞尔展开方法 傅里叶变换技术 赋形反射面天线 

分 类 号：TN820.12[电子电信—信息与通信工程]