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BS EN 61189-2-721:2015 outlines a way to determine the relative permittivity ( ε r) and loss tangent (tanδ ) (also called dielectric constant (Dk) and dissipation factor (Df)) of copper clad laminates at microwave frequencies (from 1,1 GHz to 20 GHz) using a split post dielectric resonator (SPDR).

This part of IEC 61189 is applicable to copper clad laminates and dielectric base materials.


All current amendments available at time of purchase are included with the purchase of this document.