Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Jelena Dinkic"'
Publikováno v:
IEEE Access, Vol 7, Pp 136855-136866 (2019)
Nonuniform helical antennas have many degrees of freedom, which makes the search space for the optimal design very challenging. The objective of this paper is to systematically analyze nonuniform helical antennas with linearly varying geometrical par
Externí odkaz:
https://doaj.org/article/d3ba6d791b754122966d360c52b6720b
Autor:
Antonije R. Djordjevic, Jelena Dinkic, Alenka Zajic, Dragan I. Olcan, Frank T. Werner, Milos Prvulovic
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 63:1799-1811
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fc5db0ccc222e4a728deca91ca2cfb4
https://doi.org/10.1109/temc.2021.3063657
https://doi.org/10.1109/temc.2021.3063657
Publikováno v:
2022 30th Telecommunications Forum (TELFOR).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aa525859246fbcd91753b3916d7cb39
https://doi.org/10.1109/telfor56187.2022.9983713
https://doi.org/10.1109/telfor56187.2022.9983713
Publikováno v:
IEEE Transactions on Antennas and Propagation. 69:4123-4135
We develop an algorithm for localizing and estimating electrically small targets using sparse processing framework and vector electric-field measurements. To model the sources of electromagnetic field, we use equivalent electric and magnetic dipoles,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e81778420cf78677299d3ef6a41e1828
https://doi.org/10.1109/tap.2020.3045608
https://doi.org/10.1109/tap.2020.3045608
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd041b640652d7cc85405d92da80e51c
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886805
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886805
Publikováno v:
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting.
We present results for comparison of gain of the optimal uniform and nonuniform helical antennas taking into the account conductor losses. Critical conductivities are observed, for the given operating frequency and the helix axial length. Above the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b56cdca0c2cd75a98e8d48eef6a10a9b
https://doi.org/10.1109/ieeeconf35879.2020.9330063
https://doi.org/10.1109/ieeeconf35879.2020.9330063
Publikováno v:
Facta Universitatis. Series Electronics and Energetics 30 (2016): 187–197.
info:cnr-pdr/source/autori:Marija Nikolic Stevanovic, Jelena Dinkic, Antonije Djordjevic, Jasmin Music, Lorenzo Crocco/titolo:Sparse localization of breast tumors using quasi-TE polarized antennas/doi:/rivista:Facta Universitatis. Series Electronics and Energetics/anno:2016/pagina_da:187/pagina_a:197/intervallo_pagine:187–197/volume:30
info:cnr-pdr/source/autori:Marija Nikolic Stevanovic, Jelena Dinkic, Antonije Djordjevic, Jasmin Music, Lorenzo Crocco/titolo:Sparse localization of breast tumors using quasi-TE polarized antennas/doi:/rivista:Facta Universitatis. Series Electronics and Energetics/anno:2016/pagina_da:187/pagina_a:197/intervallo_pagine:187–197/volume:30
We develop a three-dimensional (3D) sparse algorithm for localization of breast tumors, using an antenna array and signal processing. Assuming that the prior-knowledge of the breast tissue distribution is available, we develop a model in which the tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40ac925b767110af1a8b13d9ec28d621
https://doi.org/10.2298/fuee1702187n
https://doi.org/10.2298/fuee1702187n
Publikováno v:
International Journal of Antennas and Propagation, Vol 2019 (2019)
We present a design of a high-gain quad array of nonuniform helical antennas. The design is obtained by optimization of a 3-D numerical model of four nonuniform helical antennas placed above a ground plane, including a model of a feeding network, uti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::906c27dad2aef164ec38979df70fa0d6
Publikováno v:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
Comparison of various optimization approaches for the design of nonuniform helical antennas is presented. The considered helices have linearly varying radius and pitch. Results show that this design has many similar (or suboptimal) solutions with sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cb7ff2a02daec36a3c89e4169d4d5ad
https://doi.org/10.1109/apusncursinrsm.2018.8608928
https://doi.org/10.1109/apusncursinrsm.2018.8608928
Publikováno v:
EUSIPCO
We investigate the role of polarization in sparse differential microwave imaging for the breast-cancer localization. We consider two types of antenna arrays, placed around realistic inhomogeneous breast models. In the first case, the antennas are ver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8265fa12535f33ec0f9cdded8f091fc
https://doi.org/10.1109/eusipco.2016.7760269
https://doi.org/10.1109/eusipco.2016.7760269