@Article{HasarBarKayErtBut:2013:ReInTr,
               author = "Hasar, Ugur Cem and Barroso, Joaquim Jose and Kaya, Yunus and 
                         Ertugrul, Mehmet and Bute, Musa",
          affiliation = "Department of Electrical and Electronics Engineering, University 
                         of Gaziantep, 27310 Gaziantep, Turkey; Center for Research and 
                         Application of Nanoscience and Nanoengineering, Ataturk 
                         University, 25240 Erzurum, Turkey and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and Department of Electrical and 
                         Electronics Engineering, Ataturk University, 25240 Erzurum, 
                         Turkey; Department of Electricity and Energy, Bayburt University, 
                         Bayburt 69000, Turkey and Center for Research and Application of 
                         Nanoscience and Nanoengineering, Ataturk University, 25240 
                         Erzurum, Turkey; Department of Electrical and Electronics 
                         Engineering, Ataturk University, 25240 Erzurum, Turkey and 
                         Department of Electrical and Electronics Engineering, University 
                         of Gaziantep, 27310 Gaziantep, Turkey",
                title = "Reference-plane invariant transmission-reflection method for 
                         measurement of constitutive parameters of liquid materials",
              journal = "Sensors and Actuators A: Physical",
                 year = "2013",
               volume = "203",
                pages = "346--354",
                month = "Dec.",
             keywords = "complex permittivity determination, resolving phase ambiguity, 
                         loss dielectric materials, microwave-frequencies, broad-band, 
                         calibration plane, only measurements, unique retrieval, lossy 
                         materials, inverse problem.",
             abstract = "We propose a new transmission-reflection method for measuring 
                         constitutive parameters of liquid samples inside an asymmetric 
                         measurement cell (a sample over a low-loss holder in vertical 
                         position inside an empty waveguide section). We derived 
                         reference-plane invariant expressions for constitutive parameters 
                         measurement of liquid samples from reference-plane dependent 
                         scattering parameters. In addition, we also applied a simple 
                         approach for unique determination of transformation factor and 
                         reference-plane distances. After, we also investigated how the 
                         performance of the proposed method could be improved by performing 
                         a differential uncertainty analysis. From this analysis, we found 
                         the following key results: (a) the accuracy of the proposed method 
                         could be enhanced for low-loss liquid samples by using thicker 
                         samples, and (b) the effect of constitutive parameters and the 
                         length of the (low-loss) sample holder on constitutive parameters 
                         measurements of liquid samples by the proposed method is a key 
                         parameter in increasing the accuracy of the measurements. Finally, 
                         we performed constitutive parameter measurements of distilled 
                         water and methanol to validate the proposed method and compared 
                         the proposed method with similar methods in the literature. From 
                         the measurements, we note that our method is especially useful for 
                         liquid sample measurements when the reference-plane transformation 
                         factors are not known a priori and/or if the measurements are 
                         carried out over a high frequency range.",
                  doi = "10.1016/j.sna.2013.09.007",
                  url = "http://dx.doi.org/10.1016/j.sna.2013.09.007",
                 issn = "0924-4247",
                label = "scopus 2013-11",
             language = "en",
           targetfile = "1-s2.0-S0924424713004408-main.pdf",
        urlaccessdate = "28 abr. 2024"
}