Dissipation Factors of Spherical Current Modes on Multiple Spherical Layers
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/48fe49d1-e055-46e0-91b4-bf92e769b128
- author
- Losenicky, Vit LU ; Jelinek, Lukas ; Capek, Miloslav LU and Gustafsson, Mats LU
- organization
- publishing date
- 2018-05-26
- 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}}, }