分析电磁波在自由空间通过平板电介质材料的传播特性,得到了散射参数与复介电常数之间的关系式和求解复介电常数的三种表达式,并对三种表达式分别进行误差分析.解决自由空间法测量电介质材料复介电常数的不稳定性问题和相位模糊性问题.建立测试系统,并在X波段对平板电介质材料进行测量.实验结果表明,本测试方法和测试系统是正确的.
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