<scp>Low‐cost</scp>lens antenna for<scp>5G</scp>multi‐beam communication

García-Marín, Eduardo; Filipović, Dejan S.; Masa‐Campos, José Luis; Tamayo‐Domínguez, Adrián

doi:10.1002/mop.32486

Cited by 10 publications

(12 citation statements)

References 24 publications

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“…The effective permittivity of a perforated dielectric can be calculated according to (17) and (18):

where

depends on the physical arrangement of the holes. A triangular ordering has been commonly used, as in [ 27 ], to place the holes. In this paper, a concentric ring disposition has been chosen ( Figure 7 ).…”

Section: Grin Lens Antenna Design Proceduresmentioning

confidence: 99%

“…At this point, it is essential to clarify that the maximum theoretical directivity for both cases (

) has been determined with an ideal

total aperture efficiency (

in (2), and the same lens aperture area (

, with

for the lens diameter) using the method explained in [ 27 ]. In addition, the measured total aperture efficiency has been determined through

, using the measured directivity of the two prototypes, which are included in Table 3 .…”

Section: Comparisonmentioning

confidence: 99%

“…A comparison with other works is detailed in Table 4 . Reference [ 27 ] presented a perforated planar lens that is fed by a stacked-patch microstrip antenna with four input ports. Although the lens size is smaller than in our work, the maximum measured gain is obviously less.…”

Section: Comparisonmentioning

confidence: 99%

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Beam Steering 3D Printed Dielectric Lens Antennas for Millimeter-Wave and 5G Applications

Piroutiniya,

Rasekhmanesh,

Masa-Campos

et al. 2023

Sensors

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Two types of cost-efficient antennas based on dielectric gradient index dielectric lens have been designed for 5G applications at . The first is a linearly polarized flat lens antenna (LP-FLA) for terrestrial 5G communications. The second is a novel circularly polarized stepped lens antenna (CP-SLA) for 5G satellite services. An efficient design method is presented to optimize and conform the lens topology to the radiation pattern coming from the antenna feeder. The LP-FLA is fed by a traditional linearly polarized pyramidal horn antenna (PHA). The CP-SLA is fed by an open-ended bow-tie waveguide cavity (BCA) antenna. This cavity feeder (BCA), using cross-sections with bow-tie shapes, allows having circular polarization at the desired frequency bandwidth. The two types of presented antennas have been manufactured in order to verify their performance by an easy, low-cost, three-dimensional (3D) printing technique based on stereolithography. The peak realized gain value for the flat (LP-FLA) and stepped (CP-SLA) lens antennas have been increased at to and , respectively, by disposing the lens structures at the appropriated distance from the feeders. Likewise, using an array of horns (PHA) or open-ended bow-tie waveguide cavity (BCA) antenna feeders, it is possible to obtain a maximum steering angle range of 20° and 35°, for a directivity over and , in the planar and stepped lens antennas, respectively.

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“…The effective permittivity of a perforated dielectric can be calculated according to (17) and (18):

where

Section: Grin Lens Antenna Design Proceduresmentioning

confidence: 99%

“…At this point, it is essential to clarify that the maximum theoretical directivity for both cases (

) has been determined with an ideal

total aperture efficiency (

in (2), and the same lens aperture area (

, with

for the lens diameter) using the method explained in [ 27 ]. In addition, the measured total aperture efficiency has been determined through

, using the measured directivity of the two prototypes, which are included in Table 3 .…”

Section: Comparisonmentioning

confidence: 99%

See 1 more Smart Citation

Beam Steering 3D Printed Dielectric Lens Antennas for Millimeter-Wave and 5G Applications

Piroutiniya,

Rasekhmanesh,

Masa-Campos

et al. 2023

Sensors

Self Cite

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“…For low-cost multi-beam antennas in the 5G 26-GHz range, a planar dielectric lens has been developed in Ref. 40 . Four input ports on the stacked-patch microstrip lens feeder allow for four independent high-directivity radiation beams.…”

Section: Introductionmentioning

confidence: 99%

Beam-steering of dielectric flat lens nanoantenna with elliptical patch based on antenna displacement for optical wireless applications

Helmy,

Ibrahim,

Saleh

2023

Sci Rep

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In this paper, the switched-beam nanoantenna (NA) concept is introduced with a theoretical design of an inhomogeneous dielectric flat lens modelled with different materials to steer and enhance the radiation in a particular direction based on shifting the illuminator element. Firstly, the design of hybrid plasmonic NA is introduced and analyzed considering different silicon patch shapes such as rectangular, circular, hexagonal, and elliptical shapes. The elliptical patch NA achieves a gain of up to 10.7 dBi and a return loss of − 14.41 dB. Then the design of a gradient-index dielectric flat lens with the NA is introduced to improve the antenna performance by increasing the directivity and consequently decreasing the beam-width. Furthermore, the beam-steering capabilities by displacement of the NA according to different feeding points along the X and Y-direction. By using the gradient-index dielectric flat lens, the gain is increased to 18.4 dBi with an improvement in the return loss reach to − 19.15 dB compared with traditional NA. In addition, the beam-steering capabilities were achieved with a range ± 60° × ± 55° with acceptable average antenna gain, side-lobe levels, and half power beam-width of 16.5 dBi, − 12.3 dB and 13.6° respectively.

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“…Hence, a multibeam pattern can be accomplished through selecting the feed appropriately. In [ 13 ], a graded index lens is fed by a multiple-port stacked-patch feed, achieving four different and independent beams. These solutions demand the design of a dedicated feed, not a conventional one.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a Dielectric-Only Transmitarray for Generating Multi-Focusing Near-Field Spots Using a Cluster of Feeds in the Ka-Band

Vaquero

Pino

Arrebola

et al. 2021

Sensors

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A transmitarray antenna is evaluated to generate a multi-focusing spot area in the Fresnel region of the antenna in the Ka-band. The antenna is designed to focus the radiated field at a certain point using a central feeding configuration. The number of feeds is increased to create as many focusing spots as feeds. The feeds are placed along an arc defined in the principal planes of the transmitarray, radiating independent near-field spots and providing a solution with a wide-angle spot scanning without an antenna displacement and a high isolation between feeds. To validate this concept, a transmitarray based on dielectric-only cells is designed and simulated under full-wave conditions. Then, this design is manufactured using a 3D printing technique, and the prototype is measured in a planar acquisition range. Measurements are performed for different feed positions in order to validate the multi-focusing capability of the antenna. Measurements and simulations show a high agreement and validate the proposed design technique.

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Low‐costlens antenna for5Gmulti‐beam communication

Cited by 10 publications

References 24 publications

Beam Steering 3D Printed Dielectric Lens Antennas for Millimeter-Wave and 5G Applications

Beam Steering 3D Printed Dielectric Lens Antennas for Millimeter-Wave and 5G Applications

Beam-steering of dielectric flat lens nanoantenna with elliptical patch based on antenna displacement for optical wireless applications

Evaluation of a Dielectric-Only Transmitarray for Generating Multi-Focusing Near-Field Spots Using a Cluster of Feeds in the Ka-Band

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