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Optimal antenna currents for Q, superdirectivity, and radiation patterns using convex optimization

Författare:
Publiceringsår: 2013
Språk: Engelska
Sidor: 1109-1118
Publikation/Tidskrift/Serie: IEEE Transactions on Antennas and Propagation
Volym: 61
Nummer: 3
Dokumenttyp: Artikel
Förlag: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Sammanfattning

The high Q-factor (low bandwidth) and low efficiency make the design of small antennas challenging. Here, convex optimization is used to determine current distributions that provide upper bounds on the antenna performance. Optimization formulations for maximal gain Q-factor quotient, minimal Q-factor for superdirectivity, and minimum Q for given far-fields are presented. The effects of antennas embedded in structures are also discussed. The results are illustrated for planar geometries.

Disputation

Nyckelord

  • Technology and Engineering
  • Mathematics and Statistics
  • Physics and Astronomy
  • small antennas
  • convex optimization
  • Q-factor

Övriga

Published
Yes
  • Electromagnetic theory
  • ISSN: 0018-926X

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