A fast and accurate amplitude-only transmission-reflection method for complex permittivity determination of lossy materials

HASAR U. C.

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, cilt.56, sa.9, ss.2129-2135, 2008 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Sayı: 9
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1109/tmtt.2008.2002229
  • Dergi Adı: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2129-2135
  • Anahtar Kelimeler: amplitude, materials testing, microwave measurements, permittivity, INTRINSIC-PROPERTIES, MICROWAVE, LINE
  • Atatürk Üniversitesi Adresli: Evet

Özet

Complex scattering parameter measurements using expensive vector network analyzers make microwave techniques inconvenient, for industrial-based applications. In industry, accurate and fast evaluation of materials' properties using a relatively inexpensive measurement setup is a key issue. In this paper, we derive an objective function for fast and accurate complex permittivity (e) determination of lossy materials using amplitude-only reflection and transmission scattering parameter measurements. The measurements can be carried out by relatively inexpensive microwave instruments such as a scalar network analyzer. The domain for computations of the e is significantly reduced to facilitate, rapid e determination. The objective function is verified by measurements of a commercially available antifreeze solution and binary mixture of ethyl alcohol and water solution.