Now showing items 1-3 of 3

  • Ferrite-filled cavities for compact planar resonators 

    Keatley, Paul Steven; Durrant, C.J.; Berry, S.J.; Sirotkin, Evgeny; Hibbins, Alastair P.; Hicken, R.J. (American Institute of Physics (AIP) -, 2014)
    Sub-wavelength metallic planar cavities, closed at one end, have been constructed by wrapping aluminium foil around teflon or ferrite slabs. Finite cavity width perturbs the fundamental cavity mode frequency of ferrite-filled ...
  • Surface wave resonances supported on a square array of square metallic pillars 

    Berry, S.J.; Campbell, T.; Hibbins, Alastair P.; Sambles, J. Roy (2012)
    A family of transverse-magnetic surface waves is shown to be supported at microwave frequencies by a square array of subwavelength square cross-section metal pillars on a conducting ground plane. These surface waves are ...
  • Thin metamaterial Luneburg lens for surface waves 

    Dockrey, J.A.; Lockyear, Matthew J.; Berry, S.J.; Horsley, S.A.R.; Sambles, J. Roy; Hibbins, Alastair P. (American Physical Society, 2013)
    By suitably patterning a metasurface, the phase velocity of surface waves may be manipulated. Here, a low-loss, thin (1/14th of the free-space wavelength), omnidirectional Luneburg lens, based upon a Sievenpiper “mushroom” ...