Additive manufactured graphene composite Sierpinski gasket tetrahedral antenna for wideband multi-frequency applications

Clower, William; Hartmann, Matthew J.; Joffrion, Joshua B.; Wilson, Curtis M.

doi:10.1016/j.addma.2019.101024

Cited by 13 publications

(4 citation statements)

References 15 publications

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“…because the analysis and fabrication part becomes easy and better radiation characteristics are noted. 12 In the proposed system for data transmission between vehicles to vehicles an antenna with fractal geometry based design is considered where the frequency of operation is 27 to 33 GHz. The antenna which makes use of a fractal design which is similar or slightly differs to a module of itself is named as fractal antenna.…”

Section: Fractal Antennasmentioning

confidence: 99%

“…The design of microstrip patch antenna is done in many shapes where most commonly used shapes are rectangular, square, triangular, circular, elliptical, etc. because the analysis and fabrication part becomes easy and better radiation characteristics are noted 12 . In the proposed system for data transmission between vehicles to vehicles an antenna with fractal geometry based design is considered where the frequency of operation is 27 to 33 GHz.…”

Section: Introductionmentioning

confidence: 99%

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Artificial neural network optimized ultra wide band fractal antenna for vehicular communication applications

Raghavendra

Kakkar

2022

Trans Emerging Tel Tech

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The article proposes a microstrip patch antenna for vehicular communication applications under 5G communication frequency band. The dimensions of the antenna play an important role in the field of vehicular communication applications. The antenna dimensions are optimized by introducing back propagation algorithm. Overall dimension of the antenna is reduced by 16% as compare to the traditional formulations. Further fractal geometry is implemented on the patch and recessed ground as defected ground structure. FR4 epoxy is used to construct the substrate of the proposed antenna with the dimensions of 50 mm × 60 mm × 1.6 mm and the patch is designed as rectangular patch with H‐cut and I‐cut. The proposed antenna is simulated using Ansys high frequency structure simulator v15 and the frequency of operation is 27 to 33 GHz. The antenna parameters such as reflection coefficient, voltage standing wave ratio, gain, radiation, and current distribution are investigated. The antenna is designed in compact in shape such that it is suitable for vehicular communication applications.

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Section: Fractal Antennasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Artificial neural network optimized ultra wide band fractal antenna for vehicular communication applications

Raghavendra

Kakkar

2022

Trans Emerging Tel Tech

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“…For example, in electronics, 3D printers are being used for the manufacture of printed sensors, conformal electronics, and stretchable electronics [ 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. For microwave devices, additive technology is primarily focused on the design of 3D structures, such as waveguide devices, antennas, and sensors [ 16 , 17 , 18 , 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Additive Manufacturing Techniques Applied to the Design of Planar Microwave Circuits by Fused Deposition Modeling

et al. 2020

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This work presents a study on the implementation and manufacturing of low-cost microwave electronic circuits, made with additive manufacturing techniques using fused deposition modeling (FDM) technology. First, the manufacturing process of substrates with different filaments, using various options offered by additive techniques in the manufacture of 3D printing parts, is described. The implemented substrates are structurally analyzed by ultrasound techniques to verify the correct metallization and fabrication of the substrate, and the characterization of the electrical properties in the microwave frequency range of each filament is performed. Finally, standard and novel microwave filters in microstrip and stripline technology are implemented, making use of the possibilities offered by additive techniques in the manufacturing process. The designed devices were manufactured and measured with good results, which demonstrates the possibility of using low-cost 3D printers in the design process of planar microwave circuits.

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“…Kwok et al [9] researched a conductive composite material based on carbon black (CB) and performed electrical, thermal and UV stress tests, before fabricating a functional temperature sensor. Clower et al [20] printed a Sierpinski tetrahedron-based antenna, where the advantages of additive manufacturing (AM) were utilized for the fabrication of a geometrically complex structure capable of wide-band multi-frequency wireless-signal transmission. In comparison to 3D-printed structures with embedded metal wires [21] and electronic chips [22,23], single-process 3D-printed sensors have the potential to fabricate multi-material functional structures with a structure/property relationship without the need for additional technology or intervention during the fabrication process.…”

Section: Introductionmentioning

confidence: 99%

Process Parameters for FFF 3D-Printed Conductors for Applications in Sensors

Palmić

Slavič

Boltežar

2020

Sensors

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With recent developments in additive manufacturing (AM), new possibilities for fabricating smart structures have emerged. Recently, single-process fused-filament fabrication (FFF) sensors for dynamic mechanical quantities have been presented. Sensors measuring dynamic mechanical quantities, like strain, force, and acceleration, typically require conductive filaments with a relatively high electrical resistivity. For fully embedded sensors in single-process FFF dynamic structures, the connecting electrical wires also need to be printed. In contrast to the sensors, the connecting electrical wires have to have a relatively low resistivity, which is limited by the availability of highly conductive FFF materials and FFF process conditions. This study looks at the Electrifi filament for applications in printed electrical conductors. The effect of the printing-process parameters on the electrical performance is thoroughly investigated (six parameters, >40 parameter values, >200 conductive samples) to find the highest conductivity of the printed conductors. In addition, conductor embedding and post-printing heating of the conductive material are researched. The experimental results helped us to understand the mechanisms of the conductive network’s formation and its degradation. With the insight gained, the optimal printing strategy resulted in a resistivity that was approx. 40% lower than the nominal value of the filament. With a new insight into the electrical behavior of the conductive material, process optimizations and new design strategies can be implemented for the single-process FFF of functional smart structures.

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Additive manufactured graphene composite Sierpinski gasket tetrahedral antenna for wideband multi-frequency applications

Cited by 13 publications

References 15 publications

Artificial neural network optimized ultra wide band fractal antenna for vehicular communication applications

Artificial neural network optimized ultra wide band fractal antenna for vehicular communication applications

Low-Cost Additive Manufacturing Techniques Applied to the Design of Planar Microwave Circuits by Fused Deposition Modeling

Process Parameters for FFF 3D-Printed Conductors for Applications in Sensors

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