• DocumentCode
    2085155
  • Title

    Measurement and Analysis of Coplanar MMIC Four-Port Spiral Transformers

  • Author

    Borkes, Johannes ; Naghed, Mohsen ; Wolff, Ingo

  • Author_Institution
    Department of Electrical Engineering and Sonder-forschungsbereich 254 Duisburg University, Bismarckstr. 81, D-4100 Duisburg 1, FRG
  • Volume
    2
  • fYear
    1991
  • fDate
    9-12 Sept. 1991
  • Firstpage
    1023
  • Lastpage
    1028
  • Abstract
    Coplanar spiral transformers of small dimensions and broadband characteristics are designed and fabricated on Gallium Arsenide substrate. Their propertis are investigated using an accurate circuit model. The equivalent circuit parameters are calculated using a three - dimensional finite difference method. A full four-port time-domain measurement method is used to obtain the scattering parameters of the transformers. Comparison of calculated and measured reslts shows a good agreement up to the ¿/4 -resonance frequency of the structures presented here.
  • Keywords
    Conducting materials; Conductors; Coupled mode analysis; Current distribution; Electrostatic analysis; Equivalent circuits; MMICs; Spirals; Surface resistance; Transformers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 1991. 21st European
  • Conference_Location
    Stuttgart, Germany
  • Type

    conf

  • DOI
    10.1109/EUMA.1991.336480
  • Filename
    4136420
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2085155