Antenna currents for optimal Q, superdirectivity, and radiation patterns using convex optimization
(2012) In Technical Report LUTEDX/(TEAT-7216)/1-21/(2012)- Abstract
- 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 give 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-field are presented. The effects of antennas embedded in structures are also discussed. The results are illustrated for planar geometries.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2544694
- author
- Gustafsson, Mats LU and Nordebo, Sven LU
- organization
- publishing date
- 2012
- type
- Book/Report
- publication status
- published
- subject
- keywords
- Antenna theory, Physical limitations, Antenna Q, Superdirectivity, small antennas, Convex optimization
- in
- Technical Report LUTEDX/(TEAT-7216)/1-21/(2012)
- pages
- 21 pages
- publisher
- [Publisher information missing]
- report number
- TEAT-7216
- language
- English
- LU publication?
- yes
- additional info
- Published version: IEEE Transactions on Antennas and Propagation, Vol. 61, No. 3, pp. 1109-1118, 2013.
- id
- bc94343a-05be-4735-9101-84768f62ebc1 (old id 2544694)
- date added to LUP
- 2016-04-04 13:43:26
- date last changed
- 2018-11-21 21:15:52
@techreport{bc94343a-05be-4735-9101-84768f62ebc1, abstract = {{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 give 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-field are presented. The effects of antennas embedded in structures are also discussed. The results are illustrated for planar geometries.}}, author = {{Gustafsson, Mats and Nordebo, Sven}}, institution = {{[Publisher information missing]}}, keywords = {{Antenna theory; Physical limitations; Antenna Q; Superdirectivity; small antennas; Convex optimization}}, language = {{eng}}, number = {{TEAT-7216}}, series = {{Technical Report LUTEDX/(TEAT-7216)/1-21/(2012)}}, title = {{Antenna currents for optimal Q, superdirectivity, and radiation patterns using convex optimization}}, url = {{https://lup.lub.lu.se/search/files/6189614/2544697.pdf}}, year = {{2012}}, }