Miniaturization of a microstrip patch antenna with a koch fractal contour using a social spider algorithm to optimize shorting post position and inset feeding

D´Assunção, Adaildo Gomes; Souza, Eduardo A. M.; Oliveira, Phelipe Sena; Mendonça, Laércio Martins de; Peixeiro, Custódio

Miniaturization of a microstrip patch antenna with a koch fractal contour using a social spider algorithm to optimize shorting post position and inset feeding

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dc.contributor.author	D´Assunção, Adaildo Gomes
dc.contributor.author	Souza, Eduardo A. M.
dc.contributor.author	Oliveira, Phelipe Sena
dc.contributor.author	Mendonça, Laércio Martins de
dc.contributor.author	Peixeiro, Custódio
dc.date.accessioned	2021-03-12T13:23:01Z
dc.date.available	2021-03-12T13:23:01Z
dc.date.issued	2019-05-02
dc.description.resumo	This paper presents a social spider optimization (SSO) design of a small-size microstrip antenna. Two antenna miniaturization techniques, based on the use of a Koch fractal contour and a shorting post (connecting the patch to the ground plane), are combined to enable a major size reduction. The antenna is inset fed by a microstrip line. The developed SSO algorithm is used to find out the best radius and position of the shorting post and the length of the inset feed, to achieve the desired resonant frequency with good impedance matching. Antenna prototypes have been fabricated and measured. The good agreement obtained between numerical simulation and experimental results has validated the design procedure. Compared with a conventional rectangular patch, the antenna resonance frequency is reduced from 2.45 GHz to 730 MHz, which corresponds to a remarkable miniaturization of about 70%. The proposed antenna is suitable for applications in the 700-800 MHz frequency range, such as 4G mobile communication systems	pt_BR
dc.identifier.citation	SOUZA, Eduardo A. M.; OLIVEIRA, Phelipe S.; D’ASSUNÇÃO, Adaildo G.; MENDONÇA, Laércio M.; PEIXEIRO, Custódio. Miniaturization of a Microstrip Patch Antenna with a Koch Fractal Contour Using a Social Spider Algorithm to Optimize Shorting Post Position and Inset Feeding. International Journal of Antennas and Propagation, [S.L.], v. 2019, n. 6284830, p. 1-10, 2 maio 2019. Disponível em: https://www.hindawi.com/journals/ijap/2019/6284830/. Acesso em: 20 out. 2020. http://dx.doi.org/10.1155/2019/6284830.	pt_BR
dc.identifier.doi	10.1155/2019/6284830
dc.identifier.issn	1687-5869
dc.identifier.issn	1687-5877
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/31830
dc.language	en	pt_BR
dc.publisher	Hindawi	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Miniaturization	pt_BR
dc.subject	Microstrip Patch Antenna	pt_BR
dc.subject	Koch Fractal Contou	pt_BR
dc.subject	Social Spider Algorithm	pt_BR
dc.subject	Shorting Post Position	pt_BR
dc.subject	Inset Feeding	pt_BR
dc.title	Miniaturization of a microstrip patch antenna with a koch fractal contour using a social spider algorithm to optimize shorting post position and inset feeding	pt_BR
dc.type	article	pt_BR