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本文论述了FD-TD法用于电磁辐射系统的近场计算问题,用该方法实现了对环形相控振子天线阵列的数字模拟。作为对方法的检验首先计算了单个振子天线上的电流分布,还计算了环中充满去离子水时阵列的近区场及其与人体躯干块状模型的相互作用。
In this paper, the FD-TD method for the near field calculation of electromagnetic radiation system is discussed. The digital simulation of the ring-shaped controlled-dipole antenna array is realized by this method. As a test of the method, the current distribution on a single dipole antenna was first calculated and the near field of the array and its interaction with a human bulk model were also calculated.