3D-Printed Quasi-Cylindrical Bragg Reflector to Boost the Gain and Directivity of cm- and mm-Wave Antennas

We demonstrate a concept for a large enhancement of the directivity and gain of readily available cm- and mm-wave antennas, i.e., without altering any property of the antenna design. Our concept exploits the high reflectivity of a Bragg reflector composed of three bilayers made of transparent materi...

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Published inSensors (Basel, Switzerland) Vol. 21; no. 23; p. 8014
Main Authors Ribeiro, Jéssica A. P., Filgueiras, Hugo R. D., Cerqueira Sodré Junior, Arismar, Beltrán-Mejía, Felipe, Mejía-Salazar, Jorge Ricardo
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 30.11.2021
MDPI
Subjects
Antenna design
Antenna radiation patterns
Antennas
Aperture
Bragg reflectors
Communication
Design
diffraction
Directivity
Electromagnetism
gain
Millimeter waves
multilayer structures
Radiation
Satellite communications
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Abstract We demonstrate a concept for a large enhancement of the directivity and gain of readily available cm- and mm-wave antennas, i.e., without altering any property of the antenna design. Our concept exploits the high reflectivity of a Bragg reflector composed of three bilayers made of transparent materials. The cavity has a triangular aperture in order to resemble the idea of a horn-like, highly directive antenna. Importantly, we report gain enhancements of more than 400% in relation to the gain of the antenna without the Bragg structure, accompanied by a highly directive radiation pattern. The proposed structure is cost-effective and easy to fabricate with 3D-printing. Our results are presented for frequencies within the conventional WiFi frequencies, based on IEEE 802.11 standards, thus, enabling easily implementation by non-experts and needing only to be placed around the antenna to improve the directivity and gain of the signal.
AbstractList We demonstrate a concept for a large enhancement of the directivity and gain of readily available cm- and mm-wave antennas, i.e., without altering any property of the antenna design. Our concept exploits the high reflectivity of a Bragg reflector composed of three bilayers made of transparent materials. The cavity has a triangular aperture in order to resemble the idea of a horn-like, highly directive antenna. Importantly, we report gain enhancements of more than 400% in relation to the gain of the antenna without the Bragg structure, accompanied by a highly directive radiation pattern. The proposed structure is cost-effective and easy to fabricate with 3D-printing. Our results are presented for frequencies within the conventional WiFi frequencies, based on IEEE 802.11 standards, thus, enabling easily implementation by non-experts and needing only to be placed around the antenna to improve the directivity and gain of the signal.
Author Ribeiro, Jéssica A. P.
Mejía-Salazar, Jorge Ricardo
Cerqueira Sodré Junior, Arismar
Beltrán-Mejía, Felipe
Filgueiras, Hugo R. D.
AuthorAffiliation 2 Padtec, Campinas 13098-396, SP, Brazil; fmejia@padtec.com.br
1 National Institute of Telecommunications (Inatel), Santa Rita do Sapucaí 37540-000, MG, Brazil; jessica.ribeiro@mtel.inatel.br (J.A.P.R.); hugo.rodrigues@inatel.br (H.R.D.F.); arismar@inatel.br (A.C.S.J.)
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2021 by the authors. 2021
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StartPage 8014
SubjectTerms Antenna design
Antenna radiation patterns
Antennas
Aperture
Bragg reflectors
Communication
Design
diffraction
Directivity
Electromagnetism
gain
Millimeter waves
multilayer structures
Radiation
Satellite communications
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Title 3D-Printed Quasi-Cylindrical Bragg Reflector to Boost the Gain and Directivity of cm- and mm-Wave Antennas
URI https://www.proquest.com/docview/2608146229/abstract/
https://search.proquest.com/docview/2608537001
https://pubmed.ncbi.nlm.nih.gov/PMC8659596
https://doaj.org/article/16e642015caf4dc9a6a46b0f4aec1981
Volume 21
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