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Physical limitations on D/Q for antennas

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Author

Summary, in English

In this paper, physical limitations on the directivity D and Q-factor Q are derived for antennas of arbitrary shape. The quotient D/Q is shown to be bounded from above by the antenna volume and certain shape coefficients in terms of the eigenvalues of the high-contrast polarizability dyadic. The theory is exemplified by numerical results for the half-wave antenna with astonishing agreement.

Publishing year

2007

Language

English

Pages

1-3

Document type

Conference paper

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

International Symposium on Electromagnetic Theory, 2007

Conference date

2007-07-26 - 2007-07-28

Conference place

Ottawa, Canada

Status

Published

Project

  • EIT_HSWC:Antenna MIMO antennas and channels

Research group

  • Electromagnetic theory