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Appl. Sci. 2017, 7(10), 979;

3D-Printed Super-Wideband Spidron Fractal Cube Antenna with Laminated Copper

School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
Electronic Warfare PMO, Agency for Defense Development, Daejeon 305-600, Korea
Author to whom correspondence should be addressed.
Received: 3 August 2017 / Revised: 4 September 2017 / Accepted: 19 September 2017 / Published: 22 September 2017
(This article belongs to the Special Issue 3D Printed Antennas)
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In this paper, a 3D-printed super-wideband (SWB) Spidron fractal cube antenna is proposed. The Spidron fractal configuration is utilized as a self-complementary structure on each face of a 3D frame to attain SWB characteristics. The antenna is excited through a tapered microstrip balun for both mode transforming and impedance matching. A prototype of the proposed antenna, including the 3D frame fabricated with the help of a 3D printer and Spidron fractal patches made of copper tape, is experimentally verified. The measured −10 dB reflection ratio bandwidth is 34:1 (0.44–15.38 GHz). The peak gain varies from 3.42 to 9.29 dBi within the operating frequency bandwidth. The measured radiation patterns are nearly omnidirectional at all operating frequency bands. View Full-Text
Keywords: 3D-printed antenna; self-complementary; Spidron fractal; super-wideband antenna 3D-printed antenna; self-complementary; Spidron fractal; super-wideband antenna

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Kwon, O.H.; Park, W.B.; Lee, S.; Lee, J.M.; Park, Y.M.; Hwang, K.C. 3D-Printed Super-Wideband Spidron Fractal Cube Antenna with Laminated Copper. Appl. Sci. 2017, 7, 979.

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