Frequency Characteristics of the Radiation Boundary Condition in Finite-Difference Time-Domain Method and Its Improvement
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概要
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When we use the finite-difference time-domain (FD-TD) method to study time-domain electromagnetic fields in the unbounded surroundings, we frequently use a radiation boundary condition (RBC) by means of one-way wave equations. The reflection coefficient by the RBC is independent of frequency, but the reflection coefficient of the finite difference approximation for the RBC depends on a frequency also; this study examines how the reflection characteristics are affected by the frequency, and the study presents the coefficients used in the RBC which gives expected reflection characteristics for a frequency, and presents the application to simulation of the matched termination of a rectangular waveguide.
- 社団法人電子情報通信学会の論文
- 1994-01-25
著者
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Kodama Masao
Faculty Of Engineering Universality Of The Ryukyus
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Kuninaka Mitsuru
Faculty of Engineering, University of the Ryukyus
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Kuninaka Mitsuru
Faculty Of Engineering University Of The Ryukyus
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