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Efficiency, gain and Q of antennas

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Author

Summary, in English

The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on small antennas. In this paper it is discussed how one can avoid low efficiency and high Q-values in small antennas by examining the far-field pattern of the antenna. The analysis is based on the expansion of the electromagnetic fields in terms of vector spherical harmonics. © 2007 IEEE.

Publishing year

2007

Language

English

Pages

384-387

Publication/Series

Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Far-field patterns
  • Vector spherical harmonics
  • Q-values

Conference name

2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007

Conference date

2007-03-21 - 2007-03-23

Conference place

Cambridge, United Kingdom

Status

Published