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本文在深入研究了时域有限差分算法(Finite-Difference Time-Domain,简称FDTD)和局域导波端口加载的基础上,对舰载波导缝隙阵进行了全波仿真分析,并利用远场外推的方法计算获得了该阵列天线的辐射增益(Radiant Gain,简称RG).计算结果表明本方法具有很好的计算精度,在不同工作频率的仿真条件下均与商业软件的计算结果吻合很好,验证了该方法的通用性和有效性,为进一步进行含有舰体的并行全波仿真提供了可能.
Based on the deep research on Finite-Difference Time-Domain (FDTD) and local waveguide port loading, the full-wave simulations of ship-guided waveguides are carried out. The Radiant Gain (referred to as RG) of the array antenna is calculated by the push method.The calculation results show that the method has good calculation accuracy and is in good agreement with the commercial software under the simulation conditions of different operating frequencies , Which verifies the versatility and effectiveness of this method, which makes it possible to further simulate a full-wave ship with hull.