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A priori estimates on the partial realized gain of UWB-antennas

Författare:
Publiceringsår: 2008
Språk: Engelska
Sidor: 1-4
Dokumenttyp: Konferensbidrag

Sammanfattning

A summation rule valid for a large class of linear and reciprocal antennas is presented in terms of the electric and
magnetic polarizability dyadics. The identity is based on the holomorphic properties of the forward scattering dyadic
and includes arbitrary shaped antennas modeled by linear and time-translational invariant constitutive relations. In
particular, a priori estimates on the partial realized gain are introduced, and lower bounds on the onset frequency
is derived for two important archetypes of UWB-antennas. The theoretical findings are illustrated by the equiangular
planar spiral antenna, and comparison with numerical simulations show great potential for future use in antenna theory.

Disputation

Nyckelord

  • Physics and Astronomy
  • Technology and Engineering

Övriga

URSI General Assembly and Scientific Symposium
2008-08-09/2008-08-16
Chicago, USA
Published
Yes
  • Electromagnetic theory

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