Using polar transformation to design a dissimilar antenna array inspired on four-leaf clover

Oliveira, Maciel Alves de; Costa, Andrécia Pereira da; Forte, Gustavo G. S.; Melo, Priscilla K. P. de; Fontgalland, Glauco; Silva, Paulo H. F.; Fontgalland, Isabel Lausanne

doi:10.1109/rws.2018.8304994

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…Antenna geometries based on bio-inspired shapes have been investigated in recent literature, where a flower shape is used to obtain a large bandwidth [2] or a papaya leaf shaped antenna provides a multi-band operation [3]. In terms of antenna array, a four-leaf based antenna is also explored [4] for low frequency applications. The usefulness of the bio-inspired antenna shape for RF applications has been extended to the GHz band [5], where a vine leaf-based shape is designed on a FR4 substrate.…”

Section: Introductionmentioning

confidence: 99%

Maple-Leaf Shaped Broadband Optical Nano-Antenna with Hybrid Plasmonic Feed for Nano-Photonic Applications

et al. 2021

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This article presents a broadband optical nano-antenna, which covers a broader range of optical communication wavelengths (666 to 6000 nm), used in nano-photonic applications. The proposed design is modeled and analyzed to obtain a satisfactory gain of up to 11.4 dBi for a single element-based antenna. The unique feature of the proposed antenna is the hybrid plasmonic waveguide-based feed, which receives the optical signal from the planar waveguide and redirects the signal out of the plane. The proposed antenna provides highly directional radiation properties, which makes it a suitable candidate for inter- and intra-chip optical communications and sensing applications. Moreover, an extension of the work is performed for an array configuration of the order 2 × 1 and 64 × 1, to increase the gain and directionality. Therefore, this shows that it can be equally useful for optical energy harvesting applications with a significant gain up to 26.8 dBi.

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Section: Introductionmentioning

confidence: 99%

Maple-Leaf Shaped Broadband Optical Nano-Antenna with Hybrid Plasmonic Feed for Nano-Photonic Applications

et al. 2021

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“…In particular, flower-shaped patches conceived on a defective ground structure (DGS) [ 2 ], Oxalis triangularis plant-leaf shapes for the realization of two frequency-selective surfaces (FSS) [ 3 ], Carica Papaya leaf-based patches [ 4 ], sunflower-seed-shaped surfaces [ 5 ], and fractal and self-similar fractals [ 6 , 7 , 8 , 9 ] have demonstrated their potential to achieve large bandwidth, high gain, multiband, and highly directive characteristics. Additionally, a four-leaf clover geometry was exploited to realize patch elements of an antenna array designed for wireless applications [ 10 ]. Investment in such nature-inspired shapes has been further promoted by the introduction of Gielis Superformula [ 11 , 12 ], which facilitates the design of patch antennas [ 13 , 14 , 15 ], metamaterials and metasurfaces [ 16 , 17 ], frequency-selective surfaces (FSS) [ 18 ], and split-ring resonators [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Rapid Prototyping of Bio-Inspired Dielectric Resonator Antennas for Sub-6 GHz Applications

et al. 2021

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Bio-inspired Dielectric Resonator Antennas (DRAs) are engaging more and more attention from the scientific community due to their exceptional wideband characteristic, which is especially desirable for the implementation of 5G communications. Nonetheless, since these antennas exhibit peculiar geometries in their micro-features, high dimensional accuracy must be accomplished via the selection of the most suitable fabrication process. In this study, the challenges to the manufacturing process presented by the wideband Spiral shell Dielectric Resonator Antenna (SsDRA), based on the Gielis superformula, are addressed. Three prototypes, made of three different photopolymer resins, were manufactured by bottom-up micro-Stereolithography (SLA). This process allows to cope with SsDRA’s fabrication criticalities, especially concerning the wavy features characterizing the thin spiral surface and the micro-features located in close proximity to the spiral origin. The assembly of the SsDRAs with a ground plane and feed probe was also accurately managed in order to guarantee reliable and repeatable measurements. The scattering parameter S11 trends were then measured by means of a Vector Network Analyzer, while the realized gains and 3D radiation diagrams were measured in the anechoic chamber. The experimental results show that all SsDRAs display relevant wideband behavior of 2 GHz at −10 dB in the sub-6 GHz range.

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Review of Recent Advancement on Nature/Bio-Inspired Antenna Designs

Azam,

Shah,

Bashir

et al. 2024

IEEE Access

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Using polar transformation to design a dissimilar antenna array inspired on four-leaf clover

Cited by 5 publications

References 4 publications

Maple-Leaf Shaped Broadband Optical Nano-Antenna with Hybrid Plasmonic Feed for Nano-Photonic Applications

Maple-Leaf Shaped Broadband Optical Nano-Antenna with Hybrid Plasmonic Feed for Nano-Photonic Applications

Rapid Prototyping of Bio-Inspired Dielectric Resonator Antennas for Sub-6 GHz Applications

Review of Recent Advancement on Nature/Bio-Inspired Antenna Designs

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