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分析复杂载体 (卫星、舰船 )上短波波段单极天线和矩形环天线特性。由于天线工作在短波波段 (3～ 30MHz) ,通常载体尺寸与波长可比拟 ,因此天线与载体之间的电磁作用比较复杂 ,天线特性会受到很大影响。用时域有限差分 (FDTD)方法模拟单极天线和环天线的算法 ,然后对一种简化卫星和舰船模型上单极天线和环天线特性是如何受天线位置、天线半径以及载体结构的影响进行模拟与分析。计算结果对实际工程应用有重要参考价值。
Analysis of complex carrier (satellite, ship) on the short-wave band monopole antenna and rectangular loop antenna characteristics. As the antenna works in the short wave band (3 ~ 30MHz), the size of the carrier is usually comparable with the wavelength. Therefore, the electromagnetic interaction between the antenna and the carrier is complicated and the antenna characteristics are greatly affected. The algorithm of simulating monopole antenna and loop antenna by finite difference time domain (FDTD) method is then used to simulate the characteristics of monopole antenna and loop antenna on a simplified satellite and ship model under the influence of antenna position, antenna radius and carrier structure Simulation and analysis. Calculation results have important reference value for practical engineering application.