Fast Computation of Electromagnetic Wave Propagation and Scattering for Quasi-cylindrical Geometry
The cylindrical Taylor Interpolation through FFT (TI-FFT) algorithm for computation of the near-field and far-field in the quasi-cylindrical geometry has been introduced. The modal expansion coefficient of the vector potentials F and A within the context of the cylindrical harmonics (TE and TM modes) can be expressed in the closed-form expression through the cylindrical addition theorem. For the quasi-cylindrical geometry, the modal expansion coefficient can be evaluated through FFT with the help of the Taylor Interpolation (TI) technique. The nearfield on any arbitrary cylindrical surface can be obtained through the Inverse Fourier Transform (IFT). The far-field can be obtained through the Near-Field Far-Field (NF-FF) transform. The cylindrical TI-FFT algorithm has the advantages of O(N log2 N) computational complexity for N=Nφ×Nz computational grid, small sampling rate (large sampling spacing) and no singularity problem.
Shaolin Liao
Electrical and Computer Engineering, 1415 Engineering Drive University of Wisconsin, Madison, 53706, USA
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
707-711
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）