用空间波法测量无限大半空间模拟介质板的复介电常数 ,包括金属板定标法与双极化法 ,测量中同时接收前向散射的振幅和相位 ,实验在X波段进行。该文的金属板定标法本质上是自由空间中的长试样法 ,并对它的原理和测试结果与波导长试样法作了比较与对照 The complex dielectric constant of an infinite half-space model dielectric plate is measured by the space wave method, including the calibration method of metal plate and the dual polarization method. The amplitude and phase of the forward scattering are measured in the measurement. The experiment is carried out in the X-band. In this paper, the calibration method of metal plate is essentially a long sample method in free space, and its principle and test results are compared with the long waveguide sample method