Electromagnetic properties measurements of ferromagnetic materials using microstrip

✍ Scribed by J. Hinojosa; D. Cottevieille; A. Le Mehaute; L. Faucon

• Book ID: 102515202
• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 154 KB
• Volume: 33
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.10269

✦ Synopsis

Abstract

A broadband technique for the simultaneous measurement of the complex permittivity and permeability of film‐shaped ferromagnetic materials is presented. Complex permittivity and permeability are computed from S‐parameter measurements under a constant exterior magnetic field of microstrip transmission lines used as cells. Moreover, a simple and fast technique that allows to the measurement of magnetic materials with a low permeability is presented. The measurement bench uses a vector network analyzer, a high‐quality on‐microstrip test fixture, and an electromagnet. Measurements in the 0.05–20 GHz range show the validity of these methods. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 176–180, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10269