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http://dx.doi.org/10.26866/jees.2017.17.4.228

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

Kong, Myeongjun (Department of Electrical Engineering, Chungnam National University)
Shin, Geonyeong (Department of Electrical Engineering, Chungnam National University)
Lee, Su-Hyeon (Department of Electrical Engineering, Chungnam National University)
Yoon, Ick-Jae (Department of Electrical Engineering, Chungnam National University)
Publication Information
Journal of electromagnetic engineering and science / v.17, no.4, 2017 , pp. 228-232 More about this Journal
Abstract
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.
Keywords
3D Printing Technology; Electrically Small Antennas; Spherical Meander Antennas; Structural Deformation Analysis;
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Times Cited By KSCI : 1  (Citation Analysis)
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