PERMEABILITY MEASUREMENT OF SPLIT-RING-RESONATOR METAMATERIALS FROM FREE-SPACE TRANSMISSION-ONLY CALIBRATION-INDEPENDENT METHODS

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Atıf İçin Kopyala

Hasar U. C., Barroso J. J., ERTUĞRUL M.

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, cilt.26, sa.1, ss.54-63, 2012 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 26 Sayı: 1
• Basım Tarihi: 2012
• Doi Numarası: 10.1163/156939312798954982
• Dergi Adı: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.54-63
• Karadeniz Teknik Üniversitesi Adresli: Hayır

Özet

A promising calibration-independent microwave method is proposed for complex permeability extraction of metamaterial structures composed of periodic split-ring resonators. For the retrieval process, uncalibrated (raw) complex scattering parameter measurements of three measurement configurations in free-space are utilized. The advantage of the proposed method is that it employs the transmission-only scattering parameters of metamaterial slabs in the permeability retrieval. This approach improves measurement stability and accuracy and eliminates measurement errors, if any, occurring in reflection S-parameters of the slab. It is validated by retrieving the magnetic properties of various homogeneous metamaterial slabs.