【摘要】 设定了六种不同的吸波材料,它们具有不同的相对磁导率的实部(μ′r)与虚部(μ″r)以及不同的相对介电常数的实部(ε′r)与虚部(εr″)。按照Kraus的传输线阻抗转换方程,迭代计算了厚度3mm,1~6层吸波涂层的反射损失在2~18GHz频率范围随频率的变化。计算结果表明,涂层排列方式对反射损失随频率的变化规律有很大影响。更多还原

【Abstract】 Six microwave absorbing materials with respective real and imaginary parts of relative permeability(μ′_r and μ″_r) as well as real and imaginary parts of relative dielectric permittivity(ε′_r and ε″_r) were assumed.Reflection loss changes of microwave absorbers having 1～6 layers and 3mm thickness with the frequency in the range of 2～18 GHz were iteratively computed according to Kraus’ impedance conversion equation.Computed results show that coating layer arrangement has important effect of reflection loss changes with frequency.更多还原