Connector design for 3D printed antennas

Hoyack, Michael; Bjorgaard, Jason; Huber, Eric; Mirzaee, Milad; Noghanian, Sima

doi:10.1109/aps.2016.7695947

Cited by 9 publications

(8 citation statements)

References 2 publications

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“…In [15] the challenge of attaching an SMA connector to the Yagi-Uda antenna was discussed. To overcome these challenges, a direct cable launch was proposed to connect the FBTA and Yagi-Uda antennas to a 50 Ω RG-405 conformable coaxial cable.…”

Section: Fractal Bow-tie and Yagi-uda Antennas Termination Designmentioning

confidence: 99%

“…Along with the development of 3D printing technology for the fabrication of antennas, determining a method to attach a connector to the antennas is getting important. The conductive materials were found not to adhere well enough to the PLA to adequately support the sub miniature version A (SMA) connector [15]. This led to unnecessary radiation performance losses.…”

Section: Introductionmentioning

confidence: 99%

“…Spiral antennas are circularly polarized wideband antennas [17] with geometries determined by the wavelength of the desired operation frequencies [18]. The final design is a Yagi-Uda antenna comprised of a half-wavelength dipole and a parasitic element to improve the radiation properties of the antenna [15].…”

Section: Introductionmentioning

confidence: 99%

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Design and Fabrication of Antennas Using 3d Printing

Bjorgaard¹,

Hoyack²,

Huber³

et al. 2018

PIER C

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Due to a recent growth in three-dimension (3D) printing technology, engineers can fabricate affordable and versatile antennas; however, lossy conductive materials, inadequate antenna terminations, and simplistic designs which do not adequately utilize the available volume continue to limit the capabilities of 3D printed antennas. In this work, the dielectric constants of three polylactic acid (PLA) materials, dielectric PLA, magnetic PLA and conductive PLA, were measured using the coaxial transmission line method, and the results were compared with measurements using the commercially available coaxial probe method. Based on published dielectric constants for solid non-printed PLA, a variety of antenna designs were simulated and fabricated. Each of these antenna designs addressed a certain shortcoming faced by 3D printed antennas. The antennas were designed with a target resonant frequency of 2.45 GHz, an impedance bandwidth of at least 500 MHz, and a gain greater than 1.5 dBi. The three antennas presented here are a fractal bow-tie antenna (FBTA), a spiral antenna, and a Yagi-Uda antenna.

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Section: Fractal Bow-tie and Yagi-uda Antennas Termination Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design and Fabrication of Antennas Using 3d Printing

Bjorgaard¹,

Hoyack²,

Huber³

et al. 2018

PIER C

Self Cite

View full text Add to dashboard Cite

show abstract

“…The FFF has been used for substrate printing for the MPA using polylactic acid (PLA), acrylonitrile butadiene styrene (ABS) and Ninja flex, etc. [23]. Studies have also shown that all parts of MPA (patch, substrate, and ground) have also been printed using AM techniques [24].…”

Section: Introductionmentioning

confidence: 99%

“…22 The FFF has been used for substrate printing for the MPA using polylactic acid (PLA), acrylonitrile butadiene styrene (ABS) and Ninja flex. 23 Studies have also shown that all parts of MPA (patch, substrate, and ground) have also been printed using AM techniques. 24 Different AM techniques such as inkjet 3D printing have shown their application in the field of textile wearable sensors 25 such as printing antennas on leather bags, 26 watches, and armbands.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional printed thermoplastic polyurethane on fabric as wearable smart sensors

Kumar

Singh

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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The microstrip patch antenna (MPA) with a thermoplastic substrate has been widely used in wearable sensors primarily due to its lightweight, flexibility, strength, and compactness. But up till now, little has been conveyed on the use of three-dimensional (3D) printed thermoplastic polyurethane (TPU) on cotton-lycra woven (CLW) fabric-based substrate as a wearable sensor. This study presents a novel and scalable approach for characterizing, simulating, and fabricating the substrate for wearable sensor applications. In this study 3D printing of TPU on CLW fabric (70% cotton (on the warp side)-30% lycra (on the weft side) using fused filament fabrication (FFF) process) has been reported with a tradeoff between flexibility and strength (of a substrate for wearable sensor applications). The rheological, mechanical, morphological, four-dimensional (4D), and resonance frequency (RF) characterization of the substrate has been established. As regards rheological properties, the melt flow index (MFI) of primary (1°) recycled TPU was observed as 29.758 g/(10min). Further, the optimized 3D printing settings of TPU were obtained based on the mechanical testing (minimum stiffness, maximum peak strength (PS), maximum Young's modulus (E), and maximum strain energy (SE)) which comes out to be 225°C nozzle temperature, 18 mm/s printing speed and 60% infill density with a stiffness of 3.311 N/mm and PS of 9.628 MPa. The mechanical properties of TPU printed on stretched and unstretched CLW fabric were tested for lower stiffness (more flexibility). To ascertain the mechanical properties, porosity analyses of samples printed on CLW fabric have been performed based on scanning electron microscopy (SEM). For dielectric properties, and RF characterization, the ring resonator (RR) test was performed based on a Vector network analyzer (VNA). Finally, 4D characterization of the substrate was performed by applying a load from 0 to 25 N, resulting in programable RF output (in the industry scientific and medicine (ISM) band).

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Fabrication of conformal antenna by 3D printing of recycled thermoplastic polyurethane on fabric

Kumar

Singh

et al. 2023

Materials Today: Proceedings

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Connector design for 3D printed antennas

Cited by 9 publications

References 2 publications

Design and Fabrication of Antennas Using 3d Printing

Design and Fabrication of Antennas Using 3d Printing

Three-dimensional printed thermoplastic polyurethane on fabric as wearable smart sensors

Fabrication of conformal antenna by 3D printing of recycled thermoplastic polyurethane on fabric

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