Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2-721: Test methods for materials for interconnection structures - Measurement of relative permittivity and loss tangent for copper clad laminate at microwave frequency using split post dielectric resonator (IEC 61189-2-721:2015); German version EN 61189-2-721:2015
电气材料、印制板和其他互连结构和组件的试验方法第2-721部分:互连结构材料的试验方法用分裂柱d测量微波频率下覆铜板的相对介电常数和损耗正切