—A novel hybrid Finite Element Method and High Frequency Technique for the efficient analysis of scattering and radiation problems is presented. Results of the analysis of two-dimensional scattering and radiation problems using Physical Optics as the high frequency technique are given showing some of the features of the method. 940 Gómez-Revuelto et al.
—The third-order version of Nédélec's first family of curl-conforming elements over simplices is presented. Following the definition of the element given by Nédélec, the third-order vector basis functions are deduced. The elements thus obtained exhibit some important differences with respect to other higher-order curl-conforming elements appeared in the… (More)
This paper analyses numerically the electric field distribution of a liquid contained in a Petri dish when exposed to electromagnetic waves excited in a rectangular waveguide. Solutions exhibit high-gradients due to the presence of the dielectric liquid contained in the dish. Furthermore, electromagnetic fields within the dielectric have a dramatically… (More)
—In this paper, a fully automatic goal-oriented hp-adaptive finite element strategy for open region electromagnetic problems (radiation and scattering) is presented. The methodology leads to exponential rates of convergence in terms of an upper bound of an user-prescribed quantity of interest. Thus, the adaptivity may be guided to provide an optimal error,… (More)
This paper employs a 3D hp self-adaptive grid-refinement finite element strategy for the solution of a particular electromagnetic waveguide structure known as Magic-T. This structure is utilized as a power divider/combiner in communication systems as well as in other applications. It often incorporates dielectrics, metallic screws, round corners, and so on,… (More)
Spain. The authors want also to acknowledge the support of Ministerio de Educación y Ciencia of Spain under project TEC2004-06252/TCM. Abstract The accurate analysis and characterization of waveguide discontinuities is an important issue in microwave engineering. In some cases, the discontinu-ities are an unavoidable result of mechanical or electric… (More)