| 摘要 |
An electromagnetic wave analyzer which computes transitional behavior of electromagnetic waves, taking into account conductor losses in each metal part, without the computation being limited by the metal thickness or angular frequencies. An initialization unit initializes various calculation parameters such as metal thickness d, the number of meshes, mesh sizes, dielectric constant ∈ of each cell, permeability mu, and electrical conductivity sigma. An analyzing unit uses a finite difference time domain method to solve a given equation under a surface impedance boundary condition in which the surface impedance z(omega) of a metal part becomes to 1/dsigma when the skin depth delta approaches infinity (i.e., when the angular frequency omega approaches zero). The analyzing unit yields a solution that described the transitional behavior of electromagnetic waves and outputs it as a result data file. In this way, the analyzer of the present invention computes transitional behavior of electromagnetic waves, taking into account conductor losses in each metal part, without being affected by the thickness of the metal parts.
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