Zobrazeno 1 - 10
of 19
pro vyhledávání: '"and Alireza Shamsafar"'
Autor:
Alireza Shamsafar, Luigi Boccia, G. Scalise, Emilio Arnieri, Giandomenico Amendola, Domenico Calzona, S. Pires, J. Zhao, MW Mohadig Rousstia
Publikováno v:
2021 15th European Conference on Antennas and Propagation (EuCAP).
Phased arrays are one of the most critical blocks in 5G networks. In the case of the point-to-multipoint link, they have to provide beam reconfigurability over a large scanning range while maintaining a low profile and a limited cost. Moreover, opera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fdf4daf9f871c22073b4671e013750d
https://doi.org/10.23919/eucap51087.2021.9411477
https://doi.org/10.23919/eucap51087.2021.9411477
Autor:
Alireza Shamsafar, Giuseppe Scalise, Giandomenico Amendola, MW Mohadig Rousstia, Luigi Boccia
Publikováno v:
2020 14th European Conference on Antennas and Propagation (EuCAP).
Magneto Electric (ME) dipoles have been widely studied over the last few years. They are becoming increasingly popular as they allow to generate a wide bandwidth in a printed circuit board (PCB). Nevertheless, their principle of operation requires th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30cea489e85110c32901ac7c2361cda9
https://doi.org/10.23919/eucap48036.2020.9136068
https://doi.org/10.23919/eucap48036.2020.9136068
Publikováno v:
International Journal of Electronics. 102:187-199
In this work, it is presented a new configuration of planar power combiner/divider based on an H-plane sectoral horn antenna. This component is proposed to realise the basic building blocks of printed power-combining amplifiers. It will be shown how
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20d29fa35c29a945b65f560d5dd064be
https://doi.org/10.1080/00207217.2014.896041
https://doi.org/10.1080/00207217.2014.896041
Autor:
T. Purtova, Hermann Schumacher, Alireza Shamsafar, Luigi Boccia, Filipe Tabarani, Emilio Arnieri, Giandomenico Amendola
Publikováno v:
IEEE Microwave and Wireless Components Letters. 25:733-735
This letter reports the design and measurements of a SiGe BiCMOS duplexer developed for T/R (transmit/receive) Ka-band SatCom on-the-move user terminals. The IC presented in this work is designed for the integration in a hexa-core chip for dual-band
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e5e10847d61cb4ea6ae6014b87cd525
https://doi.org/10.1109/lmwc.2015.2479854
https://doi.org/10.1109/lmwc.2015.2479854
Autor:
Homayoon Oraizi, Alireza Shamsafar
Publikováno v:
Progress In Electromagnetics Research C. 29:1-16
In this paper, a new circuit conflguration composed of two main and reference paths is proposed for the modifled multi- section Schifiman phase shifter, which improves its bandwidth. The method of least squares (MLS) is developed for its design, base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c5600aecfa678b92fff395e49d74d7e
https://doi.org/10.2528/pierc12022704
https://doi.org/10.2528/pierc12022704
Autor:
Elnaz Abaei, Giandomenico Amendola, Emilio Arnieri, Esfandiar Mehrshahi, and Alireza Shamsafar
Publikováno v:
Progress In Electromagnetics Research C. 29:261-273
In this paper, two dimensional multi-port method is used to analyze substrate integrated waveguide by using Green's function approach to obtain the impedance matrix of equivalent planar structure. Modes propagation constant of substrate integrated wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::037063449db0498ce0e10ccd3b52568e
https://doi.org/10.2528/pierc12022506
https://doi.org/10.2528/pierc12022506
Publikováno v:
2015 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop (INMMiC).
In this paper, an innovative design for on-chip 8×8 Butler matrix in SiGe BiCMOS technology is proposed. The proposed component is designed for 24 GHz radar applications and it is implemented using the BiCMOS9MW ST Microelectronic process, which is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f04e831bcf2e9b7ea17251cb20226259
https://doi.org/10.1109/inmmic.2015.7330377
https://doi.org/10.1109/inmmic.2015.7330377
Publikováno v:
2012 6th European Conference on Antennas and Propagation (EUCAP).
In this work, preliminary results of a study on printed power combiners configurations for power-amplifier applications are presented. The proposed configuration is based on Substrate Integrated Waveguide (SIW) and multilayer PCB technologies. In par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db8abf5d922dcdada0d4d3e5bf106ab6
https://doi.org/10.1109/eucap.2012.6206405
https://doi.org/10.1109/eucap.2012.6206405
Autor:
Homayoon Oraizi, Alireza Shamsafar
Publikováno v:
2009 International Conference on Advances in Computational Tools for Engineering Applications.
In this paper, the method of leas squares is used to the optimum design of the modified schiffman phase shifter, which used the dissipation effect and dispersion relations of the microstrip coupled lines in their microwave circuit models. An error fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ef388b04bb7fce015b9045da4063f0a
https://doi.org/10.1109/actea.2009.5227906
https://doi.org/10.1109/actea.2009.5227906
Autor:
Homayoon Oraizi, Alireza Shamsafar
Publikováno v:
2009 International Conference on Advances in Computational Tools for Engineering Applications.
In this paper, the method of leas squares is used to the optimum design of the modified coupled-line phase shifter, which used the dissipation effect and dispersion relations of the microstrip coupled lines in their microwave circuit models. An error
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f041375eda3cd2f1699b9b39460c0422
https://doi.org/10.1109/actea.2009.5227903
https://doi.org/10.1109/actea.2009.5227903