Measurement of Propagation Characteristics of Nonreciprocal Networks/Lines Using a Line-Line Method

HASAR U. C., Kaya Y., ERTUĞRUL M.

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, cilt.63, sa.4, ss.1240-1247, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 63 Sayı: 4
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1109/temc.2020.3040663
  • Dergi Adı: IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1240-1247
  • Anahtar Kelimeler: Nonreciprocal networks, propagation constant, symmetric reflections, uniformity, wave-cascading matrix, COMPLEX PERMITTIVITY DETERMINATION, CALIBRATION-INDEPENDENT METHOD, CONSTITUTIVE PARAMETERS RETRIEVAL, REFERENCE-PLANE INVARIANT, DIELECTRIC-CONSTANT, EXTRACTION
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this article have proposed a new calibration-free line-line method for propagation constant (gamma) determination of homogeneous nonreciprocal networks or lines with symmetric reflection property. To achieve our goal, wave-cascading matrices for impedance, amplitude, and phase changes for a line step from a homogeneous reciprocal network or line to a homogeneous nonreciprocal network or line (and vice versa). Two different approaches based on the proposed line-line method are proposed for unique extraction of gamma in forward and backward directions. Measurements of gamma for two reciprocal lines (waveguide straights at X-band and Ku-band with different lengths) and a nonreciprocal line (microwave phase shifter) were first carried out and then compared with measured gamma of these lines by different methods to validate our method and monitor its accuracy.