• DocumentCode
    522584
  • Title

    Oblique incidence optimisation of a pyramidal absorber using a frequency selective surface

  • Author

    Ford, Kenneth L. ; Holtby, Daniel G. ; Chambers, Barry

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Univ. of Sheffield, Sheffield, UK
  • fYear
    2010
  • fDate
    12-16 April 2010
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    This paper presents a topology for improving the low frequency performance of pyramidal radar absorbing materials at oblique angles of incidence. The technique uses an embedded frequency selective surface as an impedance matching layer and improves the −40dB reflectivity limit from 6GHz to 4GHz for 102mm pyramidal absorber. The frequency selective surface is based on a resistively loaded dipole FSS and simulations of optimised results of the modified RAM structure are presented.
  • Keywords
    Anechoic chambers; Design optimization; Frequency selective surfaces; Geometry; Impedance matching; Permittivity; Polarization; Radar antennas; Radar cross section; Reflectivity;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
  • Conference_Location
    Barcelona, Spain
  • Print_ISBN
    978-1-4244-6431-9
  • Electronic_ISBN
    978-84-7653-472-4
  • Type

    conf

  • Filename
    5505781
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=522584