Cut-Off Wavenumbers of Polygonal Cross Section Waveguides

被引:7
|
作者
Lucido, Mario [1 ]
Panariello, Gaetano [1 ]
Pinchera, Daniele [1 ]
Schettino, Fulvio [1 ]
机构
[1] Univ Cassino & Southern Lazio, Dept Elect & Comp Engn, I-03043 Cassino, FR, Italy
关键词
Cut-off wavenumbers; Galerkin's method; polygonal cross section waveguides; ELECTROMAGNETIC SCATTERING; FINITE-ELEMENT; TM MODES; CYLINDERS; TE;
D O I
10.1109/LMWC.2014.2340735
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The choice of basis functions is a key-point in Galerkin's method. Taking into account the edge behaviour of the fields can greatly improve the effectiveness of the method, especially when dealing with conducting structures. Another issue is related to the impedance matrix computation, which can be cumbersome when resorting to the spectral domain. The aim of this letter is the analysis of arbitrary polygonal cross section waveguides with a technique addressing both the aforementioned issues. The reported numerical results show that high accuracy can be obtained quickly and with few basis functions.
引用
收藏
页码:656 / 658
页数:3
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