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In this paper, new computational algorithm of FDTD method is proposed to analyze the electromagnetic field moving with higher velocity value. To apply the Lorentz transformations to FDTD method, at least two frames are required in calculation. But it is difficult to introduce two frames, rest frame and moving frame, in FDTD method. Here, by using two overlapped meshes, it makes possible to use these...
In this paper, the received wave at the observation point is calculated when observation point moves. It can be shown that the frequency of the received wave is shifted. To verify the over set grid generation method, numerical results are compared with the body fitted grid generation method and the theoretical results. Good agreements are obtained in these three results. The over set grid generation...
In this paper, electromagnetic field propagated from a moving plate in three dimensions is analyzed in time domain and spectral domain. Some numerical results are compared with the stationary ones and it can be shown that the frequency in the received wave is shifted.
In this paper, the modeling technique of 3D MEMS structures with sinusoidal motion is proposed. This technique is a combination of the FDTD method and the body fitted grid generation technique. The numerical results of the field plot is shown for a MEMS capacitor with sinusoidal motion and demonstrate its unique computational advantages in the modeling of microwave devices and/or optical devices with...
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