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利用CST MWS软件建立了引信弹体模型,利用高斯脉冲激励,一次仿真计算,得到了引信天线端口的时域和归一化频率响应。通过改变平面波传播方向及弹体长度,得到了不同仿真结果。仿真结果表明:当平面波传播方向与弹体轴线平行且电场极化方向平行于T型天线平面时,引信天线端口的谐振点一定频率范围内的频率响应及时域响应峰值均有最大值;当弹体长度超过一定范围,弹体截断长度对引信天线能量耦合的影响可以忽略。
Using CST MWS software to build a fuselage missile model, using Gaussian pulse excitation, a simulation calculation, the fuze antenna port time domain and normalized frequency response. By changing the plane wave propagation direction and projectile length, different simulation results are obtained. The simulation results show that when the plane wave propagation direction is parallel to the projectile axis and the polarization direction of the electric field is parallel to the plane of the T antenna, the maximum frequency response and the time domain response peak of the resonance point of the fuze antenna port have the maximum value. The body length exceeds a certain range, the influence of the body cutoff length on the energy coupling of the fuze antenna can be neglected.