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Physical limitations on D/Q for antennas

Publiceringsår: 2007
Språk: Engelska
Sidor: 1-3
Dokumenttyp: Konferensbidrag


In this paper, physical limitations on the directivity D and Q-factor Q are derived for antennas of arbitrary shape. The quotient D/Q is shown to be bounded from above by the antenna volume and certain shape coefficients in terms of the eigenvalues of the high-contrast polarizability dyadic. The theory is exemplified by numerical results for the half-wave antenna with astonishing agreement.



  • Physics and Astronomy


URSI International Symposium on Electromagnetic Theory
Ottawa, Canada
  • Swedish Research Council
  • Swedish Foundation for Strategic Research (SSF)
  • EIT_HSWC:Antenna MIMO antennas and channels
  • Electromagnetic theory

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