• DocumentCode
    402360
  • Title

    Tuneable Electromagnetic Bandgap structures based on Ba0.25Sr0.75TiO3 parallel-plate varactors on silicon Coplanar Waveguides

  • Author

    Kuylenstierna, D. ; Vorobiev, A. ; Subramanyam, G. ; Gevorgian, S.

  • Author_Institution
    Dept. of Microelectron., Chalmers Univ. of Technol., Goteborg, Sweden
  • Volume
    3
  • fYear
    2003
  • fDate
    7-9 Oct. 2003
  • Firstpage
    1111
  • Abstract
    Experimental performance of Electromagnetic Band Gap (EBG) structures, based on Coplanar Waveguides (CPW) periodically loaded by high-Q-factor ferroelectric varactors is reported. The varactors are made of Ba0.25Sr0.75TiO3 films grown by laser ablation on thick Pt/Au/Pt electrodes. Due to the thick bottom electrodes the varactors have Q-factor larger than 40 at 45 GHz, which is higher in comparison with semiconductor varactors. Up to 30% tuning of the pass band edge is achieved at -20 dB level under 25V DC bias.
  • Keywords
    Q-factor; barium compounds; coplanar waveguides; ferroelectric devices; ferroelectric materials; ferroelectric thin films; microwave propagation; silicon; strontium compounds; varactors; 25 V; 45 GHz; Ba0.25Sr0.75TiO3; Ba0.25Sr0.75TiO3 film parallel-plate varactors; Pt-Au-Pt; Pt/Au/Pt electrodes; Si; high-Q-factor ferroelectric varactors; laser ablation; pass band edge tuning; silicon coplanar waveguides; thick bottom electrodes; tuneable electromagnetic bandgap structures; Coplanar waveguides; Electrodes; Electromagnetic waveguides; Laser tuning; Loaded waveguides; Metamaterials; Periodic structures; Tunable circuits and devices; Varactors; Waveguide discontinuities;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 2003. 33rd European
  • Print_ISBN
    1-58053-834-7
  • Type

    conf

  • DOI
    10.1109/EUMC.2003.1262849
  • Filename
    1262849
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=402360