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Appl. Sci. 2017, 7(11), 1134; doi:10.3390/app7111134

3-D Printed Fabry–Pérot Resonator Antenna with Paraboloid-Shape Superstrate for Wide Gain Bandwidth

School of Electrics and Information Engineering, Sichuan University, Chengdu 610064, China
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Received: 23 September 2017 / Revised: 22 October 2017 / Accepted: 1 November 2017 / Published: 4 November 2017
(This article belongs to the Special Issue 3D Printed Antennas)
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Abstract

A three-dimensional (3-D) printed Fabry–Pérot resonator antenna (FPRA), which designed with a paraboloid-shape superstrate for wide gain bandwidth is proposed. In comparison with the commonly-adopted planar superstrate, the paraboloid-shape superstrate is able to provide multiple resonant heights and thus satisfy the resonant condition of the FPRA in a wide frequency band. A FPRA working at 6 GHz is designed, fabricated, and tested. Considering the fabrication difficulty caused by its complex structure, the prototype antenna was fabricated by using the 3-D printing technology, i.e., all components of the prototype antenna were printed with photopolymer resin and then treated by the surface metallization process. Measurement results agree well with the simulation results, and show the 3-D printed FPRA has a |S11| < −10 dB impedance bandwidth of 12.4%, and a gain of 16.8 dBi at its working frequency of 6 GHz. Moreover, in comparison with the planar superstrate adopted in traditional FPRAs, the paraboloid-shape superstrate of the proposed FPRA significantly improves the 3-dB gain bandwidth from 6% to 22.2%. View Full-Text
Keywords: wideband; gain bandwidth; Fabry–Pérot resonator antenna; 3-D printing wideband; gain bandwidth; Fabry–Pérot resonator antenna; 3-D printing
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Chen, Q.; Chen, X.; Xu, K. 3-D Printed Fabry–Pérot Resonator Antenna with Paraboloid-Shape Superstrate for Wide Gain Bandwidth. Appl. Sci. 2017, 7, 1134.

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