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Dissipation Factors of Spherical Current Modes on Multiple Spherical Layers

Losenicky, Vit (author)
Czech Technical University in Prague
Jelinek, Lukas (author)
Czech Technical University in Prague
Capek, Miloslav (author)
Czech Technical University in Prague
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Gustafsson, Mats (author)
Lund University,Lunds universitet,Teoretisk elektroteknik,Forskargrupper vid Lunds universitet,Electromagnetic Theory,Lund University Research Groups
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 (creator_code:org_t)
2018
2018
English.
In: IEEE Transactions on Antennas and Propagation. - 0018-926X. ; 66:9, s. 4948-4952
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Radiation efficiencies of modal current densities distributed on a spherical shell are evaluated in terms of dissipation factor. The presented approach is rigorous, yet simple and straightforward, leading to closed-form expressions. The same approach is utilized for a two-layered shell and the results are compared with other models existing in the literature. Discrepancies in this comparison are reported and reasons are analyzed. Finally, it is demonstrated that radiation efficiency potentially benefits from the use of internal volume which contrasts with the case of the radiation Q-factor.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

Antenna theory
Optimization methods
Radiation efficiency

Publication and Content Type

art (subject category)
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Losenicky, Vit
Jelinek, Lukas
Capek, Miloslav
Gustafsson, Mats
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ENGINEERING AND TECHNOLOGY
ENGINEERING AND ...
and Electrical Engin ...
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Lund University

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