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Dissipation Factors of Spherical Current Modes on Multiple Spherical Layers

Losenicky, Vit LU ; Jelinek, Lukas ; Capek, Miloslav LU and Gustafsson, Mats LU orcid (2018) In IEEE Transactions on Antennas and Propagation 66(9). p.4948-4952
Abstract

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.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Antenna theory, Optimization methods, Radiation efficiency
in
IEEE Transactions on Antennas and Propagation
volume
66
issue
9
pages
4948 - 4952
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85047624474
ISSN
0018-926X
DOI
10.1109/TAP.2018.2841408
language
English
LU publication?
yes
id
48fe49d1-e055-46e0-91b4-bf92e769b128
date added to LUP
2018-06-13 13:07:00
date last changed
2022-12-30 11:02:02
@article{48fe49d1-e055-46e0-91b4-bf92e769b128,
  abstract     = {{<p>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.</p>}},
  author       = {{Losenicky, Vit and Jelinek, Lukas and Capek, Miloslav and Gustafsson, Mats}},
  issn         = {{0018-926X}},
  keywords     = {{Antenna theory; Optimization methods; Radiation efficiency}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{9}},
  pages        = {{4948--4952}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Antennas and Propagation}},
  title        = {{Dissipation Factors of Spherical Current Modes on Multiple Spherical Layers}},
  url          = {{http://dx.doi.org/10.1109/TAP.2018.2841408}},
  doi          = {{10.1109/TAP.2018.2841408}},
  volume       = {{66}},
  year         = {{2018}},
}