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Optimal Antenna Currents for Q, Superdirectivity, and Radiation Patterns Using Convex Optimization
Lund University.
Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.ORCID iD: 0000-0002-7018-6248
2013 (English)In: IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, E-ISSN 1558-2221, Vol. 61, no 3, 1109-1118 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. Vol. 61, no 3, 1109-1118 p.
Keyword [en]
Antenna Q, antenna theory, convex optimization, physical limitations, small antennas, superdirectivity
National Category
Physical Sciences
Research subject
Physics, Waves and Signals
Identifiers
URN: urn:nbn:se:lnu:diva-25305DOI: 10.1109/TAP.2012.2227656ISI: 000315958300012Scopus ID: 2-s2.0-84874852140OAI: oai:DiVA.org:lnu-25305DiVA: diva2:615696
Available from: 2013-04-11 Created: 2013-04-11 Last updated: 2017-12-06Bibliographically approved

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Nordebo, Sven

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Output format
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