• DocumentCode
    150094
  • Title

    Cylindrical inhomogeneous dielectric magneto-hydro-dynamic antenna

  • Author

    Gupta, Rajesh ; Yaduvanshi, Rajveer ; Sharma, Toshi

  • Author_Institution
    ECE Dept., Maharaja Surajmal Inst. of Technol., Delhi, India
  • fYear
    2014
  • fDate
    5-7 March 2014
  • Firstpage
    825
  • Lastpage
    828
  • Abstract
    The paper investigated stacked cylindrical DRAs, placed on concentric annular rings of dissimilar diameters. The hybrid structure filled with mixture of Silicon oil and Barium Strontium Titanate has been operating under controlled E-electric fields and H-magnetic fields to produce Lorentz Force on the conducting fluid. Lorentz force thus produced velocity into the fluid, which is making direct contact with feed probe. The fluid velocity v becomes function of Poynting vector. When applied electric bias to fluid resonator was varied from 5V to 30V i.e. Antenna Gain also varied from 1.5 dB to 11.09 dB. 2500 Tesla Magnetic bias produced from permanent magnets altered impedance bandwidth and operating frequency. The controlled frequency shift made this antenna frequency agile. This can be wisely used for getting antenna re-configurability. Reconfiguration application of this antenna can be best suited for software defined radios and Military.
  • Keywords
    barium compounds; conducting materials; dielectric liquids; dielectric resonator antennas; magnetohydrodynamics; silicones; strontium compounds; (BaSr)TiO3; Lorentz force; Poynting vector; Tesla magnetic bias; concentric annular rings; conducting fluid; cylindrical inhomogeneous antenna; dielectric magnetohydrodynamic antenna; dielectric resonant antenna; electric fields; feed probe contact; fluid resonator; frequency agile antenna; frequency shift control; gain 1.5 dB to 11.09 dB; hybrid structure; impedance bandwidth enhancement; magnetic fields; permanent magnet; reconfigurable antenna; silicon oil; stacked cylindrical DRA; voltage 5 V to 30 V; Antenna radiation patterns; Fluids; Gain; Magnetic resonance; Magnetohydrodynamics; Annular ring; Cylindrical DRA; Electric and Magnetic Bias; High Gain; MHD;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Computing for Sustainable Global Development (INDIACom), 2014 International Conference on
  • Conference_Location
    New Delhi
  • Print_ISBN
    978-93-80544-10-6
  • Type

    conf

  • DOI
    10.1109/IndiaCom.2014.6828078
  • Filename
    6828078