Embedded 6-GHz 3-D Printed Half-Wave Dipole Antenna

Hawatmeh, Derar; LeBlanc, Sam; Deffenbaugh, Paul I.; Weller, Thomas M.

doi:10.1109/lawp.2016.2561918

Cited by 15 publications

(6 citation statements)

References 9 publications

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“…To evaluate the electromagnetic properties of the realised structures, the possible impact of the surface roughness has been preliminarily assessed. Indeed, it is worth highlighting that when electromagnetic 3D-printed structures are considered, the surface roughness could affect the structure performance, especially when it is not sufficiently smaller than the skin depth [39][40][41]. For this reason, the roughness of two 3D-printed Electrifi and PLA samples has been verified with a Veeco Dektak 150 profilometer (see Figure 1a), equipped with a 12.5 nm stylus.…”

Section: Characterisation Of the Thermoplasticsmentioning

confidence: 99%

Electromagnetic characterisation of conductive 3D‐Printable filaments for designing fully 3D‐Printed antennas

Colella

Chietera

Michel

et al. 2022

IET Microwaves Antenna & Prop

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Additive manufacturing (AM) 3D‐printing technology is increasingly bringing benefits even in electromagnetics, with interesting prospects of application. Apart from the use of additive manufacturing for realising dielectric components of suitably shaped antennas, the ambitious target is, undoubtedly, the fully 3D realisation of radiofrequency and microwave circuits as well as radiating structures, including, therefore, conductive parts. In this regard, 3D‐printable filaments with interesting conductive properties are being produced. However, their rigorous conductivity characterisation is still missing, making it difficult to estimate the real behaviour of the final 3D printed electromagnetic device. To fill this gap, the conductivity of one of the most interesting conductive filaments, named Electrifi, is first experimentally evaluated in a frequency range as large as 0.72–6 GHz, accounting also for its roughness. Then it has been validated by designing, realising, and testing three fully 3D‐printed antennas. Specifically, two bow‐tie antennas, operating at 2.8 and 4 GHz, respectively, and an ultrawideband antenna, borrowed from the existing literature, operating between 1 and 7 GHz. The good agreement between simulated and measured results demonstrates the reliability of the performed electrical conductivity characterisation, even in the design of efficient radiating structures entirely realised with thermoplastic materials with copper nanoparticle additives.

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Section: Characterisation Of the Thermoplasticsmentioning

confidence: 99%

Electromagnetic characterisation of conductive 3D‐Printable filaments for designing fully 3D‐Printed antennas

Colella

Chietera

Michel

et al. 2022

IET Microwaves Antenna & Prop

View full text Add to dashboard Cite

show abstract

“…For example, [3] demonstrates the first known additively manufactured multilayer phased antenna array at 2.45 GHz by utilizing fused deposition modeling (FDM) of acrylonitrile butadiene styrene (ABS) filaments and microdispensing of CB028 silver conductive paste (aka DDM process), where microdispensing refers to high precision deposition of liquid materials. By using DDM and similar material combinations, [4] present a 6 GHz half-wave dipole antenna volumetrically embedded into a dielectric structure. In [5], a multilayer low profile 2.6 GHz antenna utilizing FDM of polycarbonate (PC) and microdispensing of silver ink is presented.…”

Section: Introductionmentioning

confidence: 99%

3D Printed Wideband Multilayered Dual-Polarized Stacked Patch Antenna With Integrated MMIC Switch

Kacar

Weller

Mumcu

2021

IEEE Open J. Antennas Propag.

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Capability of 3D printing for developing wideband multilayered antenna systems packaged with active RF circuit components remains relatively unexplored. To address this gap, this manuscript demonstrates wideband patch antenna that is integrated with a polarization selection switch. Antenna bandwidth is enhanced with customized substrate thicknesses and stacked patch layers. Switch is integrated with 3D vertical transitions to achieve wide bandwidth, smaller packaging, and low-loss. To enable future antenna array applications, a detailed investigation is also presented to maximize the performance of the microstrip feed lines by adjusting the substrate thickness and deposition process. The antenna consists of 13 dielectric and conductive layers. Specifically, the manuscript demonstrates the lowest attenuation in the literature for a fully printed microstrip line with 0.25 dB/cm measured loss at 18 GHz. The antenna operates with more than 80% radiation efficiency and 45% bandwidth. The polarization switch is embedded within the antenna structure. The antenna retains a high cross-polarization ratio of ~20 dB due to 3D feed line transitions and symmetric location of the switch with respect to the antenna feeds.

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“…As one of the most popular materials, ABS has many advantages, such as low cost, impact resistance, toughness, and higher glass transition temperature. 3D printing ABS [ 2 ] has been used for many applications in broad fields recently, such as fluid experimental setup [ 3 ] and dielectric devices [ 4 , 5 ]. Although raster width, layer thickness, and part orientation were shown to have a little impact on mechanical properties, the performance of 3D printed parts is significantly affected by printing parameters such as raster angle and the air gap between two adjacent deposited filaments within the same layer [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Novel 2D Dynamic Elasticity Maps for Inspection of Anisotropic Properties in Fused Deposition Modeling Objects

et al. 2020

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In this study, a novel ultrasonic non-destructive and non-invasive elastography method was introduced and demonstrated to evaluate the mechanical properties of fused deposition modeling 3D printed objects using two-dimensional dynamical elasticity mapping. Based on the recently investigated dynamic bulk modulus and effective density imaging technique, an angle-dependent dynamic shear modulus measurement was performed to extract the dynamic Young’s modulus distribution of the FDM structures. The elastographic image analysis demonstrated the presence of anisotropic dynamic shear modulus and dynamic Young’s modulus existing in the fused deposition modeling 3D printed objects. The non-destructive method also differentiated samples with high contrast property zones from that of low contrast property regions. The angle-dependent elasticity contrast behavior from the ultrasonic method was compared with conventional and static tensile tests characterization. A good correlation between the nondestructive technique and the tensile test measurements was observed.

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Embedded 6-GHz 3-D Printed Half-Wave Dipole Antenna

Cited by 15 publications

References 9 publications

Electromagnetic characterisation of conductive 3D‐Printable filaments for designing fully 3D‐Printed antennas

Electromagnetic characterisation of conductive 3D‐Printable filaments for designing fully 3D‐Printed antennas

3D Printed Wideband Multilayered Dual-Polarized Stacked Patch Antenna With Integrated MMIC Switch

Novel 2D Dynamic Elasticity Maps for Inspection of Anisotropic Properties in Fused Deposition Modeling Objects

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