Optimal Planar Electric Dipole Antennas: Searching for antennas reaching the fundamental bounds on selected metrics
(2019) In IEEE Antennas and Propagation Magazine 61(4).- Abstract
- Considerable time is often spent optimizing antennas to meet specific design metrics. Rarely, however, are the resulting antenna designs compared to rigorous physical bounds on those metrics. Here, we study the performance of optimized planar meander line antennas with respect to such bounds. Results show that these simple structures meet the lower bound on the radiation quality factor (Q-factor) (maximizing single-resonance fractional bandwidth) but are far from reaching the associated physical bounds for efficiency. The relative performance of other canonical antenna designs is comparable in similar ways, and the quantitative results are connected to intuitions from small antenna design, physical bounds, and matching network design.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/90497dcd-10dc-4ab4-9991-1fe48e7a0fe4
- author
- Capek, Miloslav LU ; Jelinek, Lukas ; Gustafsson, Mats LU ; Schab, Kurt LU ; Jonsson, B. L. G. and Ehrenborg, Casimir LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- IEEE Antennas and Propagation Magazine
- volume
- 61
- issue
- 4
- publisher
- IEEE Computer Society
- ISSN
- 1045-9243
- DOI
- 10.1109/MAP.2019.2920088
- language
- English
- LU publication?
- yes
- id
- 90497dcd-10dc-4ab4-9991-1fe48e7a0fe4
- date added to LUP
- 2024-03-04 16:48:41
- date last changed
- 2024-03-06 16:11:57
@article{90497dcd-10dc-4ab4-9991-1fe48e7a0fe4, abstract = {{Considerable time is often spent optimizing antennas to meet specific design metrics. Rarely, however, are the resulting antenna designs compared to rigorous physical bounds on those metrics. Here, we study the performance of optimized planar meander line antennas with respect to such bounds. Results show that these simple structures meet the lower bound on the radiation quality factor (Q-factor) (maximizing single-resonance fractional bandwidth) but are far from reaching the associated physical bounds for efficiency. The relative performance of other canonical antenna designs is comparable in similar ways, and the quantitative results are connected to intuitions from small antenna design, physical bounds, and matching network design.}}, author = {{Capek, Miloslav and Jelinek, Lukas and Gustafsson, Mats and Schab, Kurt and Jonsson, B. L. G. and Ehrenborg, Casimir}}, issn = {{1045-9243}}, language = {{eng}}, number = {{4}}, publisher = {{IEEE Computer Society}}, series = {{IEEE Antennas and Propagation Magazine}}, title = {{Optimal Planar Electric Dipole Antennas: Searching for antennas reaching the fundamental bounds on selected metrics}}, url = {{http://dx.doi.org/10.1109/MAP.2019.2920088}}, doi = {{10.1109/MAP.2019.2920088}}, volume = {{61}}, year = {{2019}}, }