A Fast Algorithm for Near Field Radiated by Aperture Antennas  

作　　者：LI Zhiping CHEN Haibo HE Guoyu 

机构地区：[1]School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

出　　处：《Chinese Journal of Electronics》2008年第1期183-188,共6页电子学报（英文版）

摘　　要：A fast algorithm in frequency and time domain is presented for near field radiated by aperture antennas. The convolution formulation is earlier developed to relate the near field to the equivalent magnetic current sources on the aperture in frequency domain, which accelerates the near field＇s calculation via FFT, and Fourier transform pairs have been found on the basis of Plane wave spectrum （PWS） theory and convolution theorem. The algorithm in time domain can be obtained based on the method of frequency domain, which has been proved by the rigorous Electromagnetic theory associated with Fourier transform theory. Numerical results are presented for two antennas to verify the fast algorithm.

关 键 词：Near-field  Plane-wave spectrum Aperture antennas Green function Time domain analysis. 

分 类 号：TN82[电子电信—信息与通信工程]