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| Finite element analysis of the waveguide system based on the operator theory of vector wave function space |
| Xing Feng①②; Ren Liehui①; Xu Cheng①; Zhou Bin①; Song Wenmiao① |
| ①Institute of Electronics,Chinese Academy of Sciences, Beijing 100080,China;②Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
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Abstract This paper presents a finite element method for the analysis of waveguide system without spurious modes. Prom the operator theory of the vector wave function space, a succinct and complete electromagnetic wave equation set is derived and the electiic field intensity vector can be expressed by two scalar functions. These two scalar functions are numerically computed by using finite element method so that the parameters of the waveguide system can be obtained. The method is demonstrated by the calculation of the reflection coefficients of the rectangular waveguide with an inductive diaphragm and the rectangular waveguide with an E-plane step respectively.
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Received: 08 May 2002
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2003, Vol. 25 
