Microwave material electromagnetic parameter and shielding performance slab line test method

The invention provides a microwave material electromagnetic parameter and shielding performance slab line (slab line) test method, pertains to the field of microwave and millimeter wave material electromagnetic parameter tests, and relates to slab lines (slab line). According to the method, the complex dielectric constant and complex permeability of a tested material are calculated through network parameters when the microwave tested material is loaded onto a calibrated slab line, and the shielding performance of the material is calculated through the network parameters obtained by loading and uploading a sample. The test system established by the method comprises six portions including a slab line (slabline), a transition section from the slab line to a coaxial portion, an APC-7 connector, a supporting seat, a vector network analysis meter and a polytetrafluoroethylene block. The vector network analysis meter is calibrated and then used to form the system with the other five portions, S11, S21 after the samp