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In the electromagnetic wave analytical device which analyzes the propagation of the electromagnetic wave by solving with
In the electromagnetic wave analytical device which analyzes the propagation of the electromagnetic wave by solving with
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机译：在电磁波分析装置中，通过求解
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摘要
An electromagnetic wave analyzer which numerically analyzes the behavior of electromagnetic waves at a higher computation speed, even when the object model has fine geometrical features. An analysis command input unit produces a command to initiate a simulation. Upon receipt of this command, an analyzing unit starts to calculate electromagnetic field components with an alternating direction implicit FD-TD method. The analyzing unit divides each time step into a first-half and second-half stages and alternately executes their respective operations. Take a TE wave for instance. Receiving data at time nDELTAt from a second-half stage processor, a first-half stage processor calculates electromagnetic field components at time (n+1/2)DELTAt. At this stage, x-direction electric field components Exn+1/2 are obtained with an explicit method, and y-direction electric field components Eyn+1/2 and z-direction magnetic field components Hzn+1/2 with an implicit method. The second-half stage processor receives the result of the first-half stage computation, and based on this data, it calculates electromagnetic field components at time (n+1)DELTAt. At this stage, y-direction electric field components Eyn+1 are obtained with an explicit method, as well as x-direction electric field components Exn+1 and z-direction magnetic field components Hzn+1 with an implicit method.
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