dc.contributor.author | Orgeira, Omar | |
dc.contributor.author | León Fernández, Germán | |
dc.contributor.author | Fonseca, Nelson J.G. | |
dc.contributor.author | Mongelos, Pedro | |
dc.contributor.author | Quevedo-Teruel, Oscar | |
dc.date.accessioned | 2022-03-08T08:11:53Z | |
dc.date.available | 2022-03-08T08:11:53Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | IEEE Transactions on Antennas and Propagation (2021); doi:10.1109/TAP.2021.3139093 | |
dc.identifier.uri | http://hdl.handle.net/10651/62055 | |
dc.description.abstract | The millimeter-wave band is a very attractive frequency
band for the new generations of mobile cellular networks,
i.e. 5G and 6G, due to its potential to support extremely high
data rate transmissions. Innovative antenna solutions are needed
to relieve the higher free space attenuation at these frequencies.
Here, we propose a multibeam antenna based on a geodesic
lens with stable aggregate gain characteristics in far-field. An
analytical model based on the physical path of the rays inside
the lens is applied to achieve the field distribution in the aperture
of the lens. This method is used to find the profile of a near-field
focusing lens with a widened beam in the far-field. As a proofof-
concept, a seven-beam antenna has been designed. Thanks
to the rotational symmetry of the geodesic lens, the antenna
beams present similar characteristics over an extended sectorial
coverage. The lens antenna has been manufactured and its nearfield
focusing features were validated. The prototype has been
assessed also in the far-field with a good agreement between
model, simulations and measurements. The main novelty of this
prototype is to achieve a multiple beam coverage within ±67◦
in the H-plane and ±20◦ in the E-plane, with a gain roll-off
smaller than 2 dB at 30 GHz and smaller than 3 dB at 35 GHz.
These results validate the stable aggregate gain characteristics in
far-field of the proposed solution. | spa |
dc.description.sponsorship | This work has been supported in part by the Spanish Ministry of Science and Innovation and the Spanish Research Agency, under projects ARTEINE (TEC2017-86619-R) and ENHANCE-5G (PID2020-114172RB-C21 / AEI /10.13039/501100011033) and Consejería de Empleo, Industria y Turismo under project GRUPIN-IDI-2018-000191; and in part by the VR Project 2019-03933 under call ”Research project grant within natural and engineering sciences”. The work of O. Quevedo-Teruel was partially sponsored by the Office of Naval Research (ONR), under grant number N62909-20-1-2040. The views and conclusions contained herein are those of the authors only and should not be interpreted as representing those of ONR, the U.S. Navy or the U.S. Government. | spa |
dc.language.iso | eng | spa |
dc.relation.ispartof | IEEE Transactions on Antennas and Propagation | spa |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights | © 2021 IEEE | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Antenas 5G Lentes mmwave | spa |
dc.title | Near-field focusing multibeam geodesic lens antenna for stable aggregate gain in far-field | spa |
dc.type | journal article | spa |
dc.identifier.doi | 10.1109/TAP.2021.3139093 | |
dc.relation.projectID | AEI/TEC2017-86619-R | spa |
dc.relation.projectID | AEI/PID2020-114172RB-C2 | |
dc.relation.projectID | GRUPIN-IDI-2018-000191 | |
dc.relation.publisherversion | https://doi.org/10.1109/TAP.2021.3139093 | |
dc.rights.accessRights | open access | spa |
dc.type.hasVersion | AM | |