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Abolade JO, Konditi DBO. A shorting-pin based compact meander multiband printed monopole antenna. Heliyon 2021; 7:e08390. [PMID: 34825093 PMCID: PMC8605098 DOI: 10.1016/j.heliyon.2021.e08390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/29/2021] [Accepted: 11/10/2021] [Indexed: 12/01/2022] Open
Abstract
The antenna presented in this work is based on a meandering monopole patch antenna with the incorporated shorting-pin technique for the realization of multiband antenna. The proposed antenna is printed on an FR4 with a footprint of 0.22λg×0.36λg at the lowest operating frequency. The antenna proposed demonstrated six resonances with suitable bandwidth as well as gain which make it suitable for WiMAX, LTE-A, aeronautical radio navigation, sub6GHz band for 5G, and WLAN applications. The prototype of the proposed antenna is fabricated, measured, and presented. The comparative analysis of the proposed antenna with the recently reported works shows that the proposed antenna outperformed its counterpart in terms of size and number of bands. Therefore, the antenna reported in this work is a suitable and promising candidate for future portable mobile communication devices.
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Affiliation(s)
- Jeremiah O Abolade
- Department of Electrical Engineering, Pan African University, Institute for Basic Sciences, Technology and Innovation, Nairobi, Kenya
| | - Dominic B O Konditi
- School of Electrical and Electronic Engineering, The Technical University of Kenya, Nairobi, Kenya
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Marrocco V, Basile V, Marasco I, Niro G, Melchiorre L, D’Orazio A, Grande M, Fassi I. Rapid Prototyping of Bio-Inspired Dielectric Resonator Antennas for Sub-6 GHz Applications. Micromachines (Basel) 2021; 12:1046. [PMID: 34577690 PMCID: PMC8470297 DOI: 10.3390/mi12091046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 11/16/2022]
Abstract
Bio-inspired Dielectric Resonator Antennas (DRAs) are engaging more and more attention from the scientific community due to their exceptional wideband characteristic, which is especially desirable for the implementation of 5G communications. Nonetheless, since these antennas exhibit peculiar geometries in their micro-features, high dimensional accuracy must be accomplished via the selection of the most suitable fabrication process. In this study, the challenges to the manufacturing process presented by the wideband Spiral shell Dielectric Resonator Antenna (SsDRA), based on the Gielis superformula, are addressed. Three prototypes, made of three different photopolymer resins, were manufactured by bottom-up micro-Stereolithography (SLA). This process allows to cope with SsDRA's fabrication criticalities, especially concerning the wavy features characterizing the thin spiral surface and the micro-features located in close proximity to the spiral origin. The assembly of the SsDRAs with a ground plane and feed probe was also accurately managed in order to guarantee reliable and repeatable measurements. The scattering parameter S11 trends were then measured by means of a Vector Network Analyzer, while the realized gains and 3D radiation diagrams were measured in the anechoic chamber. The experimental results show that all SsDRAs display relevant wideband behavior of 2 GHz at -10 dB in the sub-6 GHz range.
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Affiliation(s)
- Valeria Marrocco
- STIIMA CNR, Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, National Research Council, Via P. Lembo, 38/F, 70124 Bari, Italy;
| | - Vito Basile
- STIIMA CNR, Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, National Research Council, Via P. Lembo, 38/F, 70124 Bari, Italy;
| | - Ilaria Marasco
- Politecnico di Bari, Dipartimento di Ingegneria Elettrica e dell’Informazione, Via E. Orabona 4, 70125 Bari, Italy; (I.M.); (G.N.); (L.M.); (A.D.); (M.G.)
- Center for Biomolecular Nanotechnolgies, Istituto Italiano di Tecnologia (IIT), Via E. Barsanti 14, 73010 Arnesano, Italy
| | - Giovanni Niro
- Politecnico di Bari, Dipartimento di Ingegneria Elettrica e dell’Informazione, Via E. Orabona 4, 70125 Bari, Italy; (I.M.); (G.N.); (L.M.); (A.D.); (M.G.)
- Center for Biomolecular Nanotechnolgies, Istituto Italiano di Tecnologia (IIT), Via E. Barsanti 14, 73010 Arnesano, Italy
| | - Luigi Melchiorre
- Politecnico di Bari, Dipartimento di Ingegneria Elettrica e dell’Informazione, Via E. Orabona 4, 70125 Bari, Italy; (I.M.); (G.N.); (L.M.); (A.D.); (M.G.)
| | - Antonella D’Orazio
- Politecnico di Bari, Dipartimento di Ingegneria Elettrica e dell’Informazione, Via E. Orabona 4, 70125 Bari, Italy; (I.M.); (G.N.); (L.M.); (A.D.); (M.G.)
| | - Marco Grande
- Politecnico di Bari, Dipartimento di Ingegneria Elettrica e dell’Informazione, Via E. Orabona 4, 70125 Bari, Italy; (I.M.); (G.N.); (L.M.); (A.D.); (M.G.)
| | - Irene Fassi
- STIIMA CNR, Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, National Research Council, Via A. Corti, 12, 20133 Milan, Italy;
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