• DocumentCode
    2354538
  • Title

    Investigations on 77 GHz tunable reflectarray unit cells with liquid crystal

  • Author

    Moessinger, A. ; Marin, R. ; Freese, J. ; Mueller, S. ; Manabe, A. ; Jakoby, R.

  • Author_Institution
    Technische Universit?t Darmstadt, Institut f?r Hochfrequenztechnik, Merckstr. 25, 64283, Germany
  • fYear
    2006
  • fDate
    6-10 Nov. 2006
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    This paper presents investigations conducted with tunable reflectarray unit cells based on nematic liquid crystals (LC), at frequencies around 77 GHz. The structure of the cells is presented, as well as their performance as measured in a waveguide simulator setup. Encouraging results with tunable phase ranges as high as 280° with tuning voltages of up to 15V have been achieved. The investigated tunable unit cells will be used in electronically reconfigurable reflectarrays.
  • Keywords
    Conducting materials; Crystalline materials; Dielectric liquids; Frequency; Liquid crystals; Microstrip components; Microswitches; Permittivity; Semiconductor diodes; Voltage; electronically reconfigurable; nematic liquid crystal; reflectarray;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
  • Conference_Location
    Nice
  • Print_ISBN
    978-92-9092-937-6
  • Type

    conf

  • DOI
    10.1109/EUCAP.2006.4584492
  • Filename
    4584492
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2354538