【摘要】 应用区域分解法(DDM)结合有限元法(FEM)分析矩形波导E面不连续性问题,将原求解区域分解为若干个非重叠的子域,在子域的虚拟边界上采用吸收虚拟边界条件,以保证相邻子域间的波传播。分别计算了矩形波导中加载双金属膜片和双介质柱时的散射系数,结果与有关文献一致。采用这种技术,大大地减少了对计算机内存的需求。更多还原

【Abstract】 The domain decomposition method(DDM) and finite element method(FEM) are combined to analyze the E-plane discontinuity in a rectangular waveguide.The original large domain is divided into several nonoverlapping subdomains.The absorbing fictitious boundary condition is used to ensure the propagation of wave between adjacent subdomains on the boundary of each subdomain.As the verification example,the scattering coefficient of double metal strips and double dielectric posts in rectangular waveguide are calculated.The results in this paper agree well with those in literature.In this way,the required computer memory is greatly reduced.更多还原