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基于为了更好的对金属网反射面进行评估的目的,采用平面周期结构的分析方法对金属网反射面金属丝接触电流进行分析,通过Ansoft HFSS软件仿真,得到了金属丝接触电流随金属网网孔、接触状态和馈源信号入射角度的变化规律。得出在选用金属网反射面时网孔不宜过大(如在2 GHz时网孔不大于4 mm)、金属丝与金属丝之间的接触半径不宜处于2~3μm之间的结论,对研究金属网反射面天线无源互调特性及设计金属网反射面天线具有一定的理论指导意义。
Based on the purpose of evaluating the reflective surface of the metal mesh, the contact current of the metal wire on the reflective surface of the metal mesh is analyzed by the planar periodic structure analysis method. The simulation results of Ansoft HFSS software show that the contact current of the metal filament increases with the metal mesh Hole, contact state and feed signal angle of incidence changes. It is concluded that the meshes should not be too large when using the reflecting surface of the metal mesh (for example, the mesh size is not more than 4 mm at 2 GHz), the contact radius between the metal filaments and the metal filaments should not be between 2 and 3 μm, The characteristics of passive intermodulation of metal mesh reflector antenna and the design of metal mesh reflector antenna have certain theoretical significance.