Complex shaped periodic corrugations for broadband Bull’s Eye antennas

Abstract Periodically corrugated metallic antennas have been developed in recent years from microwave to THz frequencies, due to their advantages of highly directive radiation patterns, low profile and ease of fabrication. However, the limited gain bandwidth of such antennas remains one of their inh...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Despoina Kampouridou, Alexandros Feresidis
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/748cd9406911439fa927ed2f547a1b3f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:748cd9406911439fa927ed2f547a1b3f
record_format	dspace
spelling	oai:doaj.org-article:748cd9406911439fa927ed2f547a1b3f2021-12-02T16:26:38ZComplex shaped periodic corrugations for broadband Bull’s Eye antennas10.1038/s41598-021-94232-22045-2322https://doaj.org/article/748cd9406911439fa927ed2f547a1b3f2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94232-2https://doaj.org/toc/2045-2322Abstract Periodically corrugated metallic antennas have been developed in recent years from microwave to THz frequencies, due to their advantages of highly directive radiation patterns, low profile and ease of fabrication. However, the limited gain bandwidth of such antennas remains one of their inherent disadvantages. In terms of design, the majority of the existing implementations in literature utilize the standard rectangular shaped corrugated unit cell. In this paper, we propose novel complex shaped corrugated unit cells that produce a broadband performance when assembled in a periodic configuration. Two broadband prototypes are presented at the Ku frequency band that are formed of hybrid shaped corrugations. The first prototype of six periodic rings achieves, for the first time, a flat gain simulated response with a maximum value of 15.7 dBi, 1-dB gain bandwidth of 16.4%, and an extended 3-dB gain bandwidth of 19.64%. The second novel prototype of five rings achieves an enhanced 3-dB gain bandwidth of 15.2% and maximum gain of 18.1 dBi.Despoina KampouridouAlexandros FeresidisNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Despoina Kampouridou Alexandros Feresidis Complex shaped periodic corrugations for broadband Bull’s Eye antennas
description	Abstract Periodically corrugated metallic antennas have been developed in recent years from microwave to THz frequencies, due to their advantages of highly directive radiation patterns, low profile and ease of fabrication. However, the limited gain bandwidth of such antennas remains one of their inherent disadvantages. In terms of design, the majority of the existing implementations in literature utilize the standard rectangular shaped corrugated unit cell. In this paper, we propose novel complex shaped corrugated unit cells that produce a broadband performance when assembled in a periodic configuration. Two broadband prototypes are presented at the Ku frequency band that are formed of hybrid shaped corrugations. The first prototype of six periodic rings achieves, for the first time, a flat gain simulated response with a maximum value of 15.7 dBi, 1-dB gain bandwidth of 16.4%, and an extended 3-dB gain bandwidth of 19.64%. The second novel prototype of five rings achieves an enhanced 3-dB gain bandwidth of 15.2% and maximum gain of 18.1 dBi.
format	article
author	Despoina Kampouridou Alexandros Feresidis
author_facet	Despoina Kampouridou Alexandros Feresidis
author_sort	Despoina Kampouridou
title	Complex shaped periodic corrugations for broadband Bull’s Eye antennas
title_short	Complex shaped periodic corrugations for broadband Bull’s Eye antennas
title_full	Complex shaped periodic corrugations for broadband Bull’s Eye antennas
title_fullStr	Complex shaped periodic corrugations for broadband Bull’s Eye antennas
title_full_unstemmed	Complex shaped periodic corrugations for broadband Bull’s Eye antennas
title_sort	complex shaped periodic corrugations for broadband bull’s eye antennas
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/748cd9406911439fa927ed2f547a1b3f
work_keys_str_mv	AT despoinakampouridou complexshapedperiodiccorrugationsforbroadbandbullseyeantennas AT alexandrosferesidis complexshapedperiodiccorrugationsforbroadbandbullseyeantennas
_version_	1718383997482958848

Complex shaped periodic corrugations for broadband Bull’s Eye antennas

Ejemplares similares