NIST Measurement Service for Electromagnetic Characterization of Materials

摘要

The paper presents an overview of the special test/measurement services currently available at the National Institute of Standards and Technology for characterizing the dielectric and magnetic properties of materials at the rf and microwave frequencies. Many important applications of materials used throughout the electronics, microwave, aerospace, and communications industries, have created a significant and increased need for reliable data on the electromagnetic properties of such materials. The paper emphasizes recent improvements in metrology capabilities developed at NIST. These include the broadband (0.1 MHz to 18 GHz) transmission-line techniques and low-frequency parallel-plate capacitor methods. The paper also briefly addresses other facets of the NIST program, including the provision of dielectric and magnetic reference materials to customers and the organization of national round robin intercomparisons.