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Physical limitations on scattering and absorption of antennas

Publiceringsår: 2007
Språk: Engelska
Sidor: 1-6
Dokumenttyp: Konferensbidrag

Sammanfattning

In this paper, physical limitations are presented for antennas of arbitrary shape. Antenna properties such as bandwidth and directivity are shown to be bounded from above by the antenna volume and certain shape coefficients given by the eigenvalues of the high-contrast polarizability dyadic. The theoretical results are illustrated by a resonant loop antenna and an ultrawideband (UWB) spiral antenna.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

European Conference on Antennas and Propagation
2007-11-11/2007-11-16
Edinburgh, United Kingdom
  • Swedish Research Council
Published
  • EIT_HSWC:Antenna MIMO antennas and channels
Yes
  • Electromagnetic theory

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