用FDTD方法模擬穩(wěn)態(tài)電磁散射時開關(guān)函數(shù)的應(yīng)用
APPLICATION OF SWITCH-ON FUNCTIONS IN THE 2-D FDTD MODELING TIME-HARMONIC ELECTROMAGNETIC SCATTERING
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摘要: 在用時域有限差分(FDTD)方法模擬穩(wěn)態(tài)電磁散射時,為了減小穩(wěn)態(tài)建立過程中的沖激效應(yīng),縮短建立穩(wěn)態(tài)所需時間,本文引入了開關(guān)函數(shù),并給出幾種開關(guān)函數(shù)下FDTD的穩(wěn)態(tài)建立過程。
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關(guān)鍵詞:
- 電磁散射; 時域有限差分(FDTD)方法; 開關(guān)函數(shù)
Abstract: When the time-harmonic electromagnetic scattering is modeled via the finite-difference time-domain (FDTD) technique, an additional switch-on function is introduced in order to reduce the ringing phenomenon for initial transient process in FDTD calculation. Some examples are given to demonstrate the feasibility. -
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