Bio-inspired antenna for UWB systems

Silva, Paulo Fernandes da; Freire, Raimundo C. S.; Serres, Alexandre; Silva, Paulo Henrique da Fonseca; Silva, Jefferson Costa e

doi:10.1109/inscit.2016.7598210

Cited by 14 publications

(12 citation statements)

References 7 publications

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“…Nonetheless, a slight asymmetry in the main lobes was detected for the DRAs: this trend is in line with the simulated results that Melchiorre et al reported [34]. Finally, in order to highlight the benefits of exploiting bio-inspired geometries on antenna performance, the comparison between the experimental results concerning some examples of planar antennas and DRAs having various shapes is reported in Table 4: in particular, circular and modified bio-inspired patch antennas [1], regular rectangular Finally, in order to highlight the benefits of exploiting bio-inspired geometries on antenna performance, the comparison between the experimental results concerning some examples of planar antennas and DRAs having various shapes is reported in Table 4: in particular, circular and modified bio-inspired patch antennas [1], regular rectangular patches made with different metals [3], classic rectangular and cylindrical DRAs [26], starshaped DRA [26], and the proposed SsDRA, made with the same photopolymer resin, were considered. All data refer to the frequency range of interest, 2-6 GHz.…”

Section: Measurements Of the Scattering Parameter S 11 Realized Gain And 3d Radiation Patternssupporting

confidence: 83%

“…In relation to DRAs, bioinspired geometry demonstrated its capability of improving the bandwidth in a relevant fashion. Moreover, for the sake of completeness, we highlight that, as was also evidenced by da Silva Júnior et al [1], in planar antennas, the use of bio-inspired geometry for DRAs leads to a reduction of the antenna volume compared to classic shapes [26,34].…”

Section: Measurements Of the Scattering Parameter S 11 Realized Gain And 3d Radiation Patternssupporting

confidence: 55%

“…All data refer to the frequency range of interest, 2-6 GHz. As can be inferred from the summarized results, the circular monopole patch had a higher bandwidth than the jasmine flower patch, but at the cost of its larger size (it was 11.30% larger than the latter) [1]. The two rectangular patches made of copper and silver had a very small bandwidth compared to the other antennas.…”

Section: Measurements Of the Scattering Parameter S 11 Realized Gain And 3d Radiation Patternsmentioning

confidence: 86%

“…Bio-inspired designs have proved to be effective in the enhancement of antenna performance, especially for microstrip-based ones at higher frequency ranges, such as WLAN, WiMAX, 5G, and mm-wave [1]. A variety of natural shapes and geometries, showing improved bandwidth with reduced sizes and good radiation efficiency, has been widely discussed in research.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Measurements Of the Scattering Parameter S 11 Realized Gain And 3d Radiation Patternssupporting

confidence: 83%

Section: Measurements Of the Scattering Parameter S 11 Realized Gain And 3d Radiation Patternssupporting

confidence: 55%

Section: Measurements Of the Scattering Parameter S 11 Realized Gain And 3d Radiation Patternsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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“…In Ref. has been presented a monopole antenna bioinspired in the jasmine flower, generated by Gielis formula for UWB band for meets of Federal Communications Commission, with bandwidth of 9.75 GHz, and gain of 5.99 dBi.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired transparent antenna for WLAN application in 5 GHz

Júnior

Freire

Serres

et al. 2017

Micro & Optical Tech Letters

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In this paper is developed a transparent antenna, bioinspired in ingae edulis mart plants, build in Indio Tin Oxide film, and flexible transparent dielectric of low cost (cellulose acetate), generated by Gielis formula, for wireless local area network application in 5 GHz (5.15–5.85 GHz). The measured bioinspired transparent antenna presented bandwidth of 4.11 GHz (4.50‐8.66 GHz), covering the WLAN band, with maximum gain of 5.44 dBi, and half power beamwidth of 126° at resonance frequency.

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