标准摘要
[中文适用范围]： IEC 61189 的这一部分概述了一种确定微波频率（从 1 @1 GHz 至 20 GHz），使用分叉柱介质谐振器 (SPDR)。 IEC 61189的本部分适用于覆铜板和介电基材。 [外文原描述]： IEC 61189-2-721:2015 outlines a way to determine the relative permittivity and loss tangent (also called dielectric constant and dissipation factor) of copper clad laminates at microwave frequencies (from 1,1 GHz to 20 GHz) using a split post dielectric resonator (SPDR). IEC 61189-2-721:2015 is applicable to copper clad laminates and dielectric base materials.
英文名称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 a split post dielectric resonator