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Multiband Antenna Q Optimization using Stored Energy Expressions
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- Cismasu, Marius (author)
- 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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- Gustafsson, Mats (author)
- 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
- (creator_code:org_t)
- 2014
- 2014
- English.
- Series: Technical Report LUTEDX/(TEAT-7230)/1-9/(2014) ; LUTEDX/(TEAT-7230)/1-9/(2014)
- In: IEEE Antennas and Wireless Propagation Letters. - 1548-5757. ; 13, s. 646-649
- Journal article (peer-reviewed)
Abstract
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- A method to compute antenna Q from a single frequency current distribution is applied to the optimization of multiband radiating structures. A genetic algorithm produces suboptimal structures in the sense of simultaneous multiband minimum Q. These structures model in a simplified manner common wireless communication devices. The comparison with the physical bounds for the considered situations shows that the suboptimal structures perform close to their limitations. Matching networks are designed using real component models with a commercial tool. These networks have less than three components and provide less than -6.5dB reflection coefficient magnitude in all considered bands. The results show that the single frequency Q estimation method may be useful for antenna design
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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