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Absorption efficiency and physical bounds on antennas

Författare:
Publiceringsår: 2010
Språk: Engelska
Sidor: 20
Publikation/Tidskrift/Serie: Technical Report LUTEDX/(TEAT-7200)/1-20/(2010)
Dokumenttyp: Rapport
Ytterligare information: Published version: International Journal of Antennas and Propagation Volume 2010 (2010), Article ID 946746, 7 pages

Sammanfattning

The all spectrum absorption efficiency appears in the physical bounds on antennas expressed in the polarizability dyadics. Here, it is shown that this generalized absorption efficiency is close to $1/2$ for small idealized dipole antennas and for antennas with a dominant resonance in their absorption. Also, the usefulness of this parameter is analyzed for estimation of antenna performance. The results are illustrated with numerical data for several antennas.

Disputation

Nyckelord

  • Technology and Engineering

Övriga

Published
TEAT-7200
  • Electromagnetic theory

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