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Antenna currents fo...
Antenna currents for optimal Q, superdirectivity, and radiation patterns using convex optimization
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- Gustafsson, Mats (författare)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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- Nordebo, Sven (författare)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2012
- Engelska 21 s.
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Serie: Technical Report LUTEDX/(TEAT-7216)/1-21/(2012) ; TEAT-7216
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Antenna theory
- Physical limitations
- Antenna Q
- Superdirectivity
- small antennas
- Convex optimization
Publikations- och innehållstyp
- rap (ämneskategori)
- vet (ämneskategori)