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

(6 citation statements)

References 4 publications

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“…This antenna covers the 2.4 GHz wireless local area network (WLAN) band, featuring both similar and dissimilar elements. With a [20], (b) reflection coefficient of two element array presented in [21], (c) reflection response of a wayfaring-tree (Viburnum lantana) leaf-shaped antenna reported in [22].…”

Section: A Single-band Bio-inspired Antennasmentioning

confidence: 99%

“…The reflection coefficient of the antenna is illustrated in Fig.3(a). In[21], a bio-inspired patch antenna array generated by polar transformation was proposed for 2.4 GHz band applications. Polar transformation is a technique used to ensure accurate and repeatable antenna designs.…”

mentioning

confidence: 99%

“…FIGURE 3. Single band and wideband bio-inspired antennas: (a) reflection response of a butterfly-shaped antenna array proposed in[20], (b) reflection coefficient of two element array presented in[21], (c) reflection response of a wayfaring-tree (Viburnum lantana) leaf-shaped antenna reported in[22].…”

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confidence: 99%

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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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This article presents an extensive examination of antennas rooted in nature and biology, showcasing their remarkable performance across a wide spectrum of frequencies-from microwave to terahertz. The limitations of traditional antenna design have become increasingly evident in the face of burgeoning demands for novel communication technologies. Conventional analytical-equation-based approaches struggle to deliver the combined performance characteristicsencompassing bandwidth, gain, radiation pattern, and miniaturizationthat emerging technologies necessitate. This has fueled an interest in bioinspired antenna designs, a paradigm shift drawing inspiration from the ingenious structural solutions found in the living and nonliving world, from plant leaves to bird feathers. These bio-inspired designs offer distinct advantages such as broader bandwidth and reduced sizes, making them highly appealing alternatives to the limitations of conventional antenna designs. This review explores a diverse range of bio-inspired designs. Among them are fractal geometries, inspired by self-repeating patterns in nature, which achieve optimal performance. Numerous designs in this category draw inspiration from nature, incorporating patterns observed in snowflakes, tree branches, clouds, and butterflies. Furthermore, nano-antennas have attracted significant attention for their vast potential applications in microwave and optical frequencies, playing a pivotal role in high-resolution spectroscopy, biomedical diagnosis and sensing, quantum photonics, and solar cell applications. By examining design methodologies and potential benefits, this article highlights the transformative potential of nature-inspired antennas. The compelling advantages of bio-inspired approaches necessitate a thorough exploration of their potential, paving the way for the development of next-generation communication systems with unprecedented capabilities.INDEX TERMS Bio-inspired antennas, Nano antennas, Wearable antennas, Fractal antennas.

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Section: A Single-band Bio-inspired Antennasmentioning

confidence: 99%

mentioning

confidence: 99%

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

Cited by 5 publications

References 4 publications

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

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

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

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