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 Finite-difference time-domain

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Fengsheng02



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PostSubject: Finite-difference time-domain    Finite-difference time-domain  EmptyMon Oct 10, 2011 12:07 pm

Finite-difference time-domain

Finite-difference time-domain (FDTD) is a popular CEM technique. MAX232 It is easy to understand and easy to implement in software. Since it is a time-domain method, solutions can cover a wide frequency range with a single simulation run.FDTD belongs in the general class of grid-based differential time-domain numerical modeling methods. 3294F Maxwell's equations (in partial differential form) are modified to central-difference equations, discretized, and implemented in software. The equations are solved in a cyclic manner: the electric field is solved at a given instant in time, then the magnetic field is solved at the next instant in time, and the process AT45DB161D-SU-2.5 is repeated over and over again.The basic FDTD algorithm traces back to a seminal 1966 paper by Kane Yee in IEEE Transactions on Antennas and Propagation. Allen Taflove originated the descriptor "Finite-difference time-domain" and its corresponding "FDTD" acronym in a 1980 paper in IEEE Transactions MHW806A4 on Electromagnetic Compatibility. Since about 1990, FDTD techniques have emerged as the primary means to model many scientific and engineering problems addressing electromagnetic wave interactions with material structures. Current FDTD modeling applications range from near-DC (ultralow-frequency geophysics involving the entire Earth-ionosphere 1117-3.3SJ waveguide) through microwaves (radar signature technology, antennas, wireless communications devices, digital interconnects, biomedical imaging/treatment) to visible light (photonic crystals, nanoplasmonics, solitons, and biophotonics). Approximately 30 commercial and university-developed software suites are available.
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