Manufacturing Considerations in the 3-D Printing of Fractal Antennas

Jun, Sung Yun; Sanz-Izquierdo, Benito; Parker, Edward A.; Bird, David; McClelland, A.

doi:10.1109/tcpmt.2017.2730366

Cited by 44 publications

(19 citation statements)

References 33 publications

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“…Metal PBBJ was used to create fractal monopole antennas [ 201 ]. These complex structures, which could only be fabricated by 3D printing, reduced the material cost and improved the antenna performance with different matching and radiation patterns.…”

Section: Powder-based 3d Printing For Fabricating Devices With Micmentioning

confidence: 99%

“…The complex 3D antenna design resulted in an improved antenna matching for a higher frequency region within the bandwidths compared to the conventional Sierpiński tetrahedron structure and a reduction in volume by 75% which was significant for material cost saving. To fabricate more precise features for integrated electronics, there was a need to develop powder-based 3D-printing techniques with high-resolution and better surface finishing [ 201 ]. An SLM 3D-printed Cu-15Sn waveguide was used in millimeter-wave and terahertz applications.…”

Section: Powder-based 3d Printing For Fabricating Devices With Micmentioning

confidence: 99%

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Powder-Based 3D Printing for the Fabrication of Device with Micro and Mesoscale Features

et al. 2020

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Customized manufacturing of a miniaturized device with micro and mesoscale features is a key requirement of mechanical, electrical, electronic and medical devices. Powder-based 3D-printing processes offer a strong candidate for micromanufacturing due to the wide range of materials, fast production and high accuracy. This study presents a comprehensive review of the powder-based three-dimensional (3D)-printing processes and how these processes impact the creation of devices with micro and mesoscale features. This review also focuses on applications of devices with micro and mesoscale size features that are created by powder-based 3D-printing technology.

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Section: Powder-based 3d Printing For Fabricating Devices With Micmentioning

confidence: 99%

Section: Powder-based 3d Printing For Fabricating Devices With Micmentioning

confidence: 99%

Powder-Based 3D Printing for the Fabrication of Device with Micro and Mesoscale Features

et al. 2020

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“…Recent studies have reported the use of 3D printing technique to fabricate fractal designs generated through Iterated Function System (IFS) 29 . Another study used Selective Laser Melting (SLM) based 3D printing technique was used to fabricate 3D fractal antennas and suggested that AM technologies reduce material consumption and cost while fabricating fractal structures 30 . Hence, 3D printing technologies open possibilities of fabricating customized fractal design based structures while reducing the cost of manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Study on Nature-inspired Fractal Design-based Flexible Counter Electrodes for Dye-Sensitized Solar Cells Fabricated using Additive Manufacturing

James

Contractor

2018

Sci Rep

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Dye-Sensitized Solar Cells (DSSC) are third generation solar cells used as an alternative to traditional silicon solar cells. DSSCs are characterized by their durability, easy handling and ability to perform better under diverse lighting conditions which makes them an ideal choice for indoor applications. However, DSSCs suffer from several limitations including low efficiencies, susceptibility to electrolyte leakage under extreme weather conditions, and the need for expensive materials and fabrication techniques which limits their large-scale industrial applications. Addressing these limitations through efficient design and manufacturing techniques are critical in ensuring that the DSSCs transform from the current small-scale laboratory levels to sizeable industrial production. This research attempts to address some of these significant limitations by introducing the concepts of nature-inspired fractal-based design followed by the additive manufacturing process to fabricate cost-effective, flexible counter electrodes for DSSCs. The new conceptual fractal-based design counter electrodes overcome the limitations of conventional planar designs by significantly increasing the number of active reaction sites which enhances the catalytic activity thereby improving the performance. The fabrication of these innovative fractal designs is realized through cost-effective manufacturing techniques including additive manufacturing and selective electrochemical co-deposition processes. The results of the study suggest that the fractal-based counter electrodes perform better than conventional designs. Additionally, the fractal designs and additive manufacturing technology help in addressing the problems of electrolyte leakage, cost of fabrication, and scalability of DSSCs.

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“…A particularly challenging issue for the next-generation mobile terminal designs is the development of miniaturised multiband antenna modules [1]. The miniaturisation is especially significant for the antenna designer and arises out of the limited available volume of the terminal casing.…”

Section: Introductionmentioning

confidence: 99%

Compact coplanar waveguide‐fed reconfigurable fractal antenna for switchable multiband systems

Chaouche

Messaoudene

Benmabrouk

et al. 2018

IET Microwaves, Antennas & Propagation

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In this study, a coplanar waveguide‐fed reconfigurable antenna using crescent‐shaped fractal geometry is presented. The frequency reconfigurable approach is obtained using radio‐frequency positive intrinsic negative diodes, resistor, and inductors. The proposed approach has successfully allowed reconfigurable switching up to eight frequency bands between 1.46 and 6.15 GHz. Good results have been obtained in terms of stable and omnidirectional radiation patterns. The realised gains of the antenna system, in these frequency bands, vary from 0.52 to 5.67 dBi. The designed antenna has the advantages of a multiband structure and compact size over the previously reported structures. The proposed antenna is suitable for future wireless application systems.

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Manufacturing Considerations in the 3-D Printing of Fractal Antennas

Abstract: The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record.

Cited by 44 publications

References 33 publications

Powder-Based 3D Printing for the Fabrication of Device with Micro and Mesoscale Features

Powder-Based 3D Printing for the Fabrication of Device with Micro and Mesoscale Features

Study on Nature-inspired Fractal Design-based Flexible Counter Electrodes for Dye-Sensitized Solar Cells Fabricated using Additive Manufacturing

Compact coplanar waveguide‐fed reconfigurable fractal antenna for switchable multiband systems

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