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A new time‐domain transverse resonance method in solving guided wave problems
Author(s) -
Kuo ChihWen,
Itoh Tatsuo
Publication year - 1990
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.1660030403
Subject(s) - substructure , time domain , transverse plane , domain (mathematical analysis) , laplace transform , mathematical analysis , inverse laplace transform , boundary (topology) , frequency domain , mathematics , boundary value problem , algorithm , computer science , engineering , structural engineering , computer vision
A new time‐domain approach based on the frequency‐domain transverse resonance method is proposed to solve guided wave problems. This new method is capable of solving both the two‐dimensional and the three‐dimensional propagation problems. The structure under investigation is cut into individual substructures. Time‐domain Green's functions of each substructure are computed via the analytical inverse Laplace transform of the frequency‐domain Green's functions. The original problem is reconstructed by connecting the cut‐out substructures together through the interface boundary conditions. In order to verify the present approach, the empty rectangular waveguide is used as a comparison. With accurately calculated time‐domain Green's functions, the data obtained are in good agreement with the analytical results.