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Physical bounds and summation rules in antenna theory

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


Although the concept of physical bounds for electrically small antennas was first introduced more than half a century

ago by Wheeler and Chu it continuous to receive attention and still there is only a partial knowledge of these bounds.

Most of the research effort in this field are based on the ideas of a stored energy in the different partial waves as

introduced by Chu and, hence, suffers from the same shortcomings. The objective of this paper is to present three

alternative approaches to derive physical bounds on antennas that are solely based on the assumptions of linearity, timetranslational

invariance, causality, and reciprocity. These assumptions are utilized in three different scattering settings

to construct various Herglotz functions from which summation rules and associated physical bounds are derived.


  • Electrical Engineering, Electronic Engineering, Information Engineering
  • sum rule
  • physical bounds
  • antenna theory


XXIXth URSI General Assembly 2008
  • Electromagnetic theory-lup-obsolete

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