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This paper presents the development of a simple and effective plane absorbing boundary for the FDTD method. This absorbing boundary produces virtually no reflection at the tuning frequency, accomodates arbitrary incidence angle, and remains very local. The algorithm requires the knowledge of the field values at grid points lying only one space increment away from the absorbing boundary. The algorithm...
The field transient response of a circular cylinder illuminated by a plane wave having a step function wave form in the time domain is computed using the Finite Difference-Time Domain (FD-TD) numerical technique. Both cases of conducting and dielectric circular cylinders are considered and correspondence between the transient response and the rise time of the excitation wave are investigated.
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