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Application of an oblique absorbing boundary condition in the finite element simulation of phased‐array antennas
Author(s) -
Xue MingFeng,
Jin JianMing
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28075
Subject(s) - finite element method , oblique case , boundary value problem , boundary (topology) , phased array , polygon mesh , planar , microwave , physics , mathematical analysis , acoustics , engineering , optics , computer science , geometry , mathematics , structural engineering , electrical engineering , telecommunications , antenna (radio) , philosophy , linguistics , computer graphics (images)
This article describes the application of an absorbing boundary condition for truncating finite element meshes in the analysis of phased‐array antennas. For a plane wave incident on a planar boundary at a certain specified angle, this boundary condition can be tuned to be reflectionless for all frequencies and polarizations. To demonstrate its application, this boundary condition is implemented in the dual‐primal finite‐element tearing and interconnecting method for simulation of large‐scale phased‐array antennas. A good performance is achieved in terms of accuracy and convergence of the numerical solution. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:178–184, 2014