Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Daniel Rönnow"'
Autor:
Vipin Choudhary, Daniel Rönnow
Publikováno v:
Sensors, Vol 20, Iss 11, p 3161 (2020)
An ultra-wide band radar reflection measurement technique for industrial applications is introduced. A new method for determining the complex refractive index (or equivalently the relative permittivity) of objects with planar interfaces is presented.
Externí odkaz:
https://doaj.org/article/869132116a194d42bbac98615b28ac9a
Publikováno v:
IEEE Transactions on Communications. 68:4277-4292
We consider backward crosstalk in $2\times 2$ transmitters, which is caused by crosstalk from the outputs of the transmitter to the inputs or by the combination of output crosstalk and impedance mismatch. We analyze its impact via feedback networks t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d12e570c6b0f164824ee224fecb25a7c
https://doi.org/10.1109/tcomm.2020.2988927
https://doi.org/10.1109/tcomm.2020.2988927
Autor:
Daniel Rönnow, Peter Händel
Publikováno v:
IEEE Transactions on Wireless Communications. 19:1882-1893
The effects of hardware-induced crosstalk in MIMO transmitters, subject to nonlinear power amplifier distortion, are considered in this paper. A methodology that provides tractable results and a clear understanding of the effects of crosstalk on tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d42b9ead063ca55e49c1f48be11e041
https://doi.org/10.1109/twc.2019.2959534
https://doi.org/10.1109/twc.2019.2959534
Autor:
Daniel Rönnow, Oscar Bautista Gonzalez
Publikováno v:
International Journal of Modelling, Identification and Control. 43:13
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::652bb494a597c6a6a78b8081dbfa101e
https://doi.org/10.1504/ijmic.2023.10056172
https://doi.org/10.1504/ijmic.2023.10056172
Publikováno v:
International Journal of System Assurance Engineering and Management.
we present a printed lens for radar applications. The structure of the presented lens consists of an array of modified micro-strip lines, which is positioned in the antenna’s aperture on the same planar substrate. Simulations show that the gain and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a37d5191d02651a198de7485b9c065b5
https://doi.org/10.1007/s13198-021-01341-2
https://doi.org/10.1007/s13198-021-01341-2
Publikováno v:
International Journal of Microwave and Wireless Technologies. 11:989-999
Modern telecommunications are moving towards (massive) multi-input multi-output (MIMO) systems in 5th generation (5G) technology, increasing the dimensionality of the systems dramatically. In this paper, the impairments of radio frequency (RF) power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3752b3b9dbb3ae4ef790399a991009c4
https://doi.org/10.1017/s1759078719000862
https://doi.org/10.1017/s1759078719000862
Publikováno v:
IET Microwaves, Antennas & Propagation. 13:541-545
A combined L–S-band antenna module consists of four rectangular patch antennas, two of which operate at the frequencies of the first harmonics (L-band), and two others at the frequencies of the second harmonics (S-band). The module is intended for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07e8369e4a89e382a13da57475fed53e
https://doi.org/10.1049/iet-map.2018.5130
https://doi.org/10.1049/iet-map.2018.5130
Autor:
Smruti Ranjan Panigrahi, Daniel Rönnow
Publikováno v:
Microwave and Optical Technology Letters.
Experimental characterization of an amplifier's nonlinear properties at 24 GHz is presented in single and dual-band operation using orthogonal frequency-division multiplex signals. A test system for characterizing an amplifier's nonlinear properties
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49653c8aef92022660656516b830063a
https://doi.org/10.1002/mop.32889
https://doi.org/10.1002/mop.32889
Publikováno v:
2020 7th International Conference on Signal Processing and Integrated Networks (SPIN).
We present a metamaterial-based dual band microwave-absorber for radar applications, the structure of which consists of an array of closed ring resonators on a low profile substrate. Simulations show high absorption (absorptance > 90%) at dual freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e149a3c3240a3855df100bba9d81a018
https://doi.org/10.1109/spin48934.2020.9070867
https://doi.org/10.1109/spin48934.2020.9070867
Publikováno v:
IEEE Sensors Journal. 18:9112-9119
Ultra-wideband (UWB) radio transmission measurements have been used to determine the moisture content of wood chips using a time-domain technique. Wood chips have been found to have birefringent dielectric properties acting as an anisotropic dielectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19ef474f87e06532ece441aa4105fde0
https://doi.org/10.1109/jsen.2018.2870760
https://doi.org/10.1109/jsen.2018.2870760