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Absorption Efficiency and Physical Bounds on Antennas

På svenska

Author

Summary, in English

Abstract—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.

Publishing year

2010

Language

English

Publication/Series

International Journal of Antennas and Propagation

Volume

2010

Document type

Journal article

Publisher

Hindawi Limited

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • sum rule
  • absorption efficiency
  • Physical bounds
  • polarizability

Status

Published

Research group

  • Electromagnetic theory

ISBN/ISSN/Other

  • ISSN: 1687-5869