Assessment of LTCC-based dielectric flat lens antennas and switched-beam arrays for future 5G millimeter-wave communication systems
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AuthorImbert Villà, Marc; Romeu Robert, Jordi; Baquero Escudero, Mariano; Martínez Inglés, María Teresa; Molina García-Pardo, José María; [et al.]
Knowledge AreaTeoría de la Señal y las Comunicaciones
SponsorsThis work was supported in part by the Spanish Inter-Ministerial Commission on Science and Technology (CICYT) under Project TEC2013-47360-C3-1-P and Project TEC2013-47360-C3-2-P and in part by the “Ministerio de Economía” through the FPI Fellowship Program
Bibliographic CitationIMBERT VILLÀ, Marc et al. Assessment of LTCC-based dielectric flat lens antennas and switched-beam arrays for future 5G millimeter-wave communication systems. En: IEEE transactions on antennas and propagation, 30 Octubre 2017, vol. 65, núm. 12, p. 6453-6473.
60 GHz band
Flat lens antennas
IEEE This paper presents design, LTCC fabrication, and full experimental verification of novel dielectric flat lens antennas for future high data rate 5G wireless communication systems in the 60 GHz band. We introduce and practically completely evaluate and compare the performance of three different inhomogeneous gradient-index dielectric lenses with the effective parameters circularly and cylindrically distributed. These lenses, despite their planar profile antenna configuration, allow full 2-D beam-scanning of high gain radiation beams. A time-domain spectroscopy system is used to practically evaluate the permittivity profile achieved with the LTCC manufacturing process, obtaining very good results to confirm the viability of fabricating inhomogeneous flat lenses in a mass production technology. Then, the lenses performance is evaluated in terms of radiation pattern parameters, maximum gain, beam-scanning, bandwidth performance, efficiencies, and impedance matching in the whole frequency ...
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