Incorporation of the Continuous Spectrum in Closed Form Ezpressions for Layered Media Greens Functions
The rational function fitting method has proved to be useful in the derivation of closed-form expressions of spatial domain Greens functions for multilayered media. However, former implementations of the rational function fitting method lead to Greens functions expres sions that are not accurate in the far field when this far field is dominated by the continuous spectrum instead of being dominated by surface waves (as it happens in the case of lossy multilayered media). In this paper the authors introduce a novel implementation of the rational function fitting method which leads to Greens functions expressions that are accurate in the far field when this is dominated either by the continuous spectrum or by surface waves. In the new approach the far field contribution of the continuous spectrum to the Greens functions is obtained in closed form, and it is explicitly added to the total least squares approximations of the Greens functions.
R.R.Boix F.Mesa F.Medina
Department of Electronics and Electromagnetism,College of Physics,University of Seville Av.Reina Mer Department of Applied Physics 1,School of Computer Engineering,University of Seville Av.Reina Merced
国际会议
Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)
杭州
英文
1-5
2008-03-24（万方平台首次上网日期，不代表论文的发表时间）