FDTD結(jié)合變分法計(jì)算線天線間耦合度
Calculation of Mutual Coupling between Wire Antennas by Applying Variational Principles in FDTD
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摘要: 線天線的自阻抗、互阻抗及耦合度是工程應(yīng)用中迫切需要但又很難計(jì)算準(zhǔn)確的。該文將時(shí)域有限差分法和變分原理相結(jié)合，求解了線天線之間的互阻抗，從而得到了耦合系數(shù)。其結(jié)果與FEKO，NEC仿真均吻合良好，表明該文方法可以獲得比傳統(tǒng)FDTD計(jì)算方法更加準(zhǔn)確的計(jì)算結(jié)果。
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關(guān)鍵詞:
- FDTD;變分原理;互耦
Abstract: Self impedance,mutual impedance and coupling of antennas are crying out for engineering application，but they can not be easily accurately calculated. The scheme that combines variational principles and the FDTD is presented in this paper to calculate the mutual impedance of wire antennas and the coupling coefficients. Numerical results obtained here have a good agreement with that from FEKO and NEC, which validate the accuracy and efficiency of this method. -
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