Propagation Characteristics of Confocal Elliptical Coazial Lines Filled with Multilayered Media
By using the method of separation of variables in the elliptical coordinate system, a recursive formula for the electromagnetic fields in a confocal elliptical coaxial line filled with multilayered homogeneous isotropic mediums is derived; and the eigenequation is given in this paper. When the confocal elliptical coaxial line becomes circular coaxial line, the fields and the eigenequation for the circular coaxial line can be carried out from the eigenequation of the confocal elliptical coaxial line using the asymptotic formulae of Mathieu and the modified Mathieu functions with a large radial variable in elliptical system. The results show that the eigenequation of a circular coaxial line filled with multilayered media can be treated as a special case of a confocal elliptical coaxial line. In addition,some numerical examples will reveal the influence of the permittivity and the permeability of the media in the confocal elliptical coaxial line on the propagation characteristics.
Tianxin Xiong Rugui Yang
Southwest Jiaotong University,China;Sichuan Normal University,China Southwest Jiaotong University,China
国际会议
Progress in Electromagnetics Research Symposium 2005(2005年电磁学研究新进展学术研讨会)(PIERS 2005)
杭州
英文
147-150
2005-08-22（万方平台首次上网日期，不代表论文的发表时间）