Determination of Propagation Constants and Wave Impedance of Non-Reciprocal Networks From Position-Insensitive Waveguide Measurements

HASAR U. C., KAYA Y., Izginli M., Ozturk H., Barroso J. J., Ramahi O. M., ...Daha Fazla

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, cilt.70, sa.5, ss.2723-2731, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 70 Sayı: 5
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1109/tmtt.2022.3157718
  • Dergi Adı: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
  • 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.2723-2731
  • Anahtar Kelimeler: Position measurement, Impedance, Frequency measurement, Microwave measurement, Electromagnetic waveguides, Microwave theory and techniques, Calibration, Non-reciprocal networks, position-insensitive, propagation constant, transmission and reflection methods, wave impedance, TRANSMISSION-REFLECTION METHOD, REFERENCE-PLANE INVARIANT, COMPLEX PERMITTIVITY DETERMINATION, CONSTITUTIVE PARAMETERS, BROAD-BAND, ELECTROMAGNETIC PROPERTIES, LINE PERMITTIVITY, UNIQUE RETRIEVAL, PERMEABILITY, ACCURATE
  • Atatürk Üniversitesi Adresli: Evet

Özet

A microwave method is proposed to determine the forward and backward propagation constants (gamma ⁺ and gamma ⁻) and the wave impedance ( $z_{w}$ ) of reciprocal and non-reciprocal microwave networks whose positions are not known within their measurement cells (position-insensitive). The proposed method relies purely on analytical expressions and can also evaluate the reference plane transformation distances. Scattering parameter measurements at the X-band (8.2-12.4 GHz) of a reciprocal network (a waveguide straight) and a non-reciprocal network (a microwave phase shifter) arbitrarily positioned into their measurement cells were conducted to retrieve gamma ⁺, gamma ⁻, and $z_{w}$ for validation of our method and testing its position-insensitive property. The importance of the method becomes apparent when compared to conventional methods whose accuracy is based on precise determination of the reference planes.