One-dimension left-handed material Crank-Nicolson perfectly matched layer realizing algorithm based on auxiliary differential equation
A technology of fully matching layers and left-handed materials, applied in computing, special data processing applications, instruments, etc., can solve problems such as low algorithm calculation accuracy, large algorithm error, and increased numerical dispersion
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[0020] The gist of the present invention is to propose a one-dimensional left-handed material Crank-Nicolson complete matching layer realization algorithm based on auxiliary differential equations, use auxiliary equations to reduce calculation amount, optimize calculation process, thereby increasing electromagnetic field calculation speed.
[0021] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] figure 1 It is a flowchart of the present invention, and the specific implementation steps are as follows:
[0023] Step 1: Modify Maxwell’s equations in the frequency domain to Maxwell’s equations with a stretched coordinate operator, and express the modified Maxwell’s equations in the frequency domain in a Cartesian coordinate system. The TEM (transverse electromagnetic) wave is along the left-hand material The z-direction propagation can be described as
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