An electrically small, 3D printed folded spherical meander antenna

Kong, Myeongjun; Shin, Geonyeong; Lee, Suhyeon; Yoon, Ick-Jae

doi:10.1109/apemc.2017.7975435

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The antenna consists of multiple folded spherical meander arms connected to the south pole of the ball. According to a previous study on hemispherical meander antenna (46), four design parameters affect the antenna performance, including the extend angle of a single arm in XY plane (α angle) (Fig. 3E), the spherical angle between each parallel meander section to the XY plane (β angle) (Fig.…”

Section: Spherical Meander Antennamentioning

confidence: 99%

Wrap-like transfer printing for three-dimensional curvy electronics

et al. 2023

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Three-dimensional (3D) curvy electronics has wide-ranging application in biomedical health care, soft machine, and high-density curved imager. Limited by material properties, complex procedures, and coverage ability of existing fabrication techniques, the development of high-performance 3D curvy electronics remains challenging. Here, we propose an automated wrap-like transfer printing prototype for fabricating 3D curvy electronics. Assisted by a gentle and uniform pressure field, the prefabricated planar circuits on the petal-like stamp are integrated onto the target surface intactly with full coverage. The driving pressure for the wrapping is provided by the strain recovery of a prestrained elastic film triggered by the air pressure control. The wrapping configuration and strain distribution of the stamp are simulated by finite element analysis, and the pattern and thickness of the stamps are optimized. Demonstration of this strategy including spherical meander antenna, spherical light-emitting diode array, and spherical solar cell array illustrates its feasibility in the development of complex 3D curvy electronics.

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Section: Spherical Meander Antennamentioning

confidence: 99%

Wrap-like transfer printing for three-dimensional curvy electronics

et al. 2023

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“…It is well developed for the fabrication of 3D antennas. [ 237 ] Then, the process was developed and used to design a novel sensor, which includes a microprocessor and accelerometer together to detect motion and halt. [ 235 ] Moreover, an automated FDM‐based process was raised for producing features not achievable with FDM alone.…”

Section: Techniques For Direct Fabrication Of Curved Electronicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication Techniques for Curved Electronics on Arbitrary Surfaces

Tian

Luo

et al. 2020

Adv Materials Technologies

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Curved electronics, which are better coordinated and blended with the natural world due to the characteristics of large contact area, high space adaptability, etc., have been widely used in a quantity of areas ranging from conformal curved antennas and sensors in detection and measurement, to artificial smart skin of aerospace. Recent developments in curved electronics have made an increasing progress to the historic drawbacks of conventional planar electronics, however significant challenges still exist. Here, the main kinds of conformal fabrication technologies, including transfer printing, assembly techniques, curved lithography, conformal inkjet printing, 3D printing, and laser direct writing, are reviewed to realize manufacturing deformable/undeformable electronics on curved or arbitrary surfaces. The processes and features of each technology are comprehensively summarized together with their progress and potential values. Finally, the challenges and opportunities for fabricating conformal electronics on arbitrary surfaces are also discussed.

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“…The printed object is shown in Fig. 3(b) [13]. It is then brushed with a silver conductive paint from Electrolube that has a surface resistance of 0.01-0.03 Ω/sq with a drying time of 10 minutes at 20°C when deposited over a thickness of 0.6-2 g/100 cm 2 [15].…”

Section: Antenna Fabricationmentioning

confidence: 99%

“…It has been found that the 3D printed FSM antenna shows superior radiation efficiency when compared with the antenna in [12] due to the advantageous 3DP manufacturing technology. Some preliminary simulation results are shown in [13]. In this paper, further description of the antenna design, structural stability analysis due to the gravity, fabrication process, and the measured results are presented.…”

Section: Introductionmentioning

confidence: 99%

Investigation of 3D Printed Electrically Small Folded Spherical Meander Wire Antenna

Kong

Shin

Lee

et al. 2017

J Electromagn Eng Sci

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The radiation properties and fabrication precautions of a 3D printed, electrically small folded spherical meander wire monopole antenna are investigated. The antenna is self-resonant and shows sufficiently high radiation efficiency at an electrical size ka of 0.4, with the radiation quality factor Q approaching the lower physical bound. In antenna fabrication, the possible structural deformation due to gravity is examined before the antenna frame is 3D-printed. The required conductivity is achieved by multiple manual paintings of a silver paste. The radiation efficiency and pattern show very good agreement with the computed expectations, whereas the resonant frequency deviates by 11.8%. The method to minimize such a fabrication error when using 3D printing technology for wire antennas is discussed. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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An electrically small, 3D printed folded spherical meander antenna

Cited by 5 publications

References 7 publications

Wrap-like transfer printing for three-dimensional curvy electronics

Wrap-like transfer printing for three-dimensional curvy electronics

Fabrication Techniques for Curved Electronics on Arbitrary Surfaces

Investigation of 3D Printed Electrically Small Folded Spherical Meander Wire Antenna

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