3D-Printed Dual-Reflector Antenna With Self-Supported Dielectric Subreflector
A dual-reflector antenna with a self-supported subreflector is proposed. The supporting structure is made of dielectric material and it is part of the feeding of the antenna, which is based on Cassegrain optics and works at X-band. The feeding subsystem includes the primary feed, subreflector suppor...
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doaj-43ed0699ca524ab38be5f25cc44e22a32021-03-30T03:34:48ZengIEEEIEEE Access2169-35362020-01-01820909120910010.1109/ACCESS.2020.303873992614003D-Printed Dual-Reflector Antenna With Self-Supported Dielectric SubreflectorAlejandro Rebollo0https://orcid.org/0000-0002-9709-6322Alvaro F. Vaquero1https://orcid.org/0000-0001-7317-4122Manuel Arrebola2https://orcid.org/0000-0002-2487-121XMarcos R. Pino3https://orcid.org/0000-0001-7468-3084Department of Electrical Engineering, Group of Signal Theory and Communications, University of Oviedo, Gijón, SpainDepartment of Electrical Engineering, Group of Signal Theory and Communications, University of Oviedo, Gijón, SpainDepartment of Electrical Engineering, Group of Signal Theory and Communications, University of Oviedo, Gijón, SpainDepartment of Electrical Engineering, Group of Signal Theory and Communications, University of Oviedo, Gijón, SpainA dual-reflector antenna with a self-supported subreflector is proposed. The supporting structure is made of dielectric material and it is part of the feeding of the antenna, which is based on Cassegrain optics and works at X-band. The feeding subsystem includes the primary feed, subreflector supporting structure and subreflector surface in a single dielectric piece, resulting in a compact, light and low-cost solution. First, the subreflector and its feeding subsystem, based on a Dielectric Rectangular Waveguide (DRW) along with a hyperboloid, are described, and the phase center of the DRW and the antenna optics are defined. Then, two effective techniques to mitigate the refraction caused by the dielectric were proposed. Finally, the design was validated through the fabrication of a Cassegrain antenna using a 3D printing technique. Measurements and simulations show a very good agreement and an antenna of 26 dBi of directivity with overall very good performances is obtained, validating both the proposed subreflector and the design technique.https://ieeexplore.ieee.org/document/9261400/Reflector antennadual-reflector antenna3D printed antennasaperture antennafused filament fabricationCassegrain optics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Alejandro Rebollo Alvaro F. Vaquero Manuel Arrebola Marcos R. Pino |
spellingShingle |
Alejandro Rebollo Alvaro F. Vaquero Manuel Arrebola Marcos R. Pino 3D-Printed Dual-Reflector Antenna With Self-Supported Dielectric Subreflector IEEE Access Reflector antenna dual-reflector antenna 3D printed antennas aperture antenna fused filament fabrication Cassegrain optics |
author_facet |
Alejandro Rebollo Alvaro F. Vaquero Manuel Arrebola Marcos R. Pino |
author_sort |
Alejandro Rebollo |
title |
3D-Printed Dual-Reflector Antenna With Self-Supported Dielectric Subreflector |
title_short |
3D-Printed Dual-Reflector Antenna With Self-Supported Dielectric Subreflector |
title_full |
3D-Printed Dual-Reflector Antenna With Self-Supported Dielectric Subreflector |
title_fullStr |
3D-Printed Dual-Reflector Antenna With Self-Supported Dielectric Subreflector |
title_full_unstemmed |
3D-Printed Dual-Reflector Antenna With Self-Supported Dielectric Subreflector |
title_sort |
3d-printed dual-reflector antenna with self-supported dielectric subreflector |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2020-01-01 |
description |
A dual-reflector antenna with a self-supported subreflector is proposed. The supporting structure is made of dielectric material and it is part of the feeding of the antenna, which is based on Cassegrain optics and works at X-band. The feeding subsystem includes the primary feed, subreflector supporting structure and subreflector surface in a single dielectric piece, resulting in a compact, light and low-cost solution. First, the subreflector and its feeding subsystem, based on a Dielectric Rectangular Waveguide (DRW) along with a hyperboloid, are described, and the phase center of the DRW and the antenna optics are defined. Then, two effective techniques to mitigate the refraction caused by the dielectric were proposed. Finally, the design was validated through the fabrication of a Cassegrain antenna using a 3D printing technique. Measurements and simulations show a very good agreement and an antenna of 26 dBi of directivity with overall very good performances is obtained, validating both the proposed subreflector and the design technique. |
topic |
Reflector antenna dual-reflector antenna 3D printed antennas aperture antenna fused filament fabrication Cassegrain optics |
url |
https://ieeexplore.ieee.org/document/9261400/ |
work_keys_str_mv |
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