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Rigorous analysis of frequency selective surfaces of finite extent using a hybrid finite difference time domain–boundary integral equation technique
Author(s) -
Rogier Hendrik,
De Zutter Daniël,
Olyslager Frank
Publication year - 2000
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/1999rs001911
Subject(s) - mathematics , finite element method , mathematical analysis , finite difference coefficient , finite difference method , finite difference , integral equation , matrix difference equation , boundary (topology) , boundary value problem , boundary knot method , poincaré–steklov operator , mixed finite element method , mixed boundary condition , partial differential equation , boundary element method , robin boundary condition , physics , riccati equation , thermodynamics
A hybrid finite difference time domain–boundary integral equation approach is used to model frequency selective surfaces of finite extent. Using the finite difference time domain technique, a system matrix is constructed for a box enclosing all relevant features within a unit cell. The open character of the finite frequency selective surface is modeled by coupling a boundary integral equation formulation to the system matrix found with the finite difference time domain approach. A number of relevant examples are studied, and a comparison is made between our new technique and the more classical finite difference time domain technique or the hybrid finite element–boundary integral equation method.