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Reducing the computational requirements of time‐reversal device optimizations
Author(s) -
Scott Ian,
Vukovic Ana,
Sewell Phillip
Publication year - 2009
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.746
Subject(s) - computer science , computational complexity theory , field (mathematics) , modal , basis (linear algebra) , component (thermodynamics) , process (computing) , quality (philosophy) , space time , simple (philosophy) , algorithm , mathematical optimization , engineering , mathematics , epistemology , chemical engineering , polymer chemistry , pure mathematics , thermodynamics , operating system , philosophy , chemistry , physics , geometry
Time‐reversal simulations using conventional numerical algorithms provide the basis for a simple component optimization procedure. However, the computational requirements of the approach can become excessive, requiring the recording of the complete field time histories on a surface surrounding the problem space. In this work temporal, spatial and modal filtering methods are employed to significantly reduce the computational resources demanded by the time‐reversal process. The design of a number of WR90 (X‐band) waveguide components is used to quantify the balance between the computational efficiency gains and deterioration in the final design quality. Copyright © 2009 John Wiley & Sons, Ltd.