Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High Gains

In this paper, a novel tri-band low-cost antenna covering the desired frequencies is presented. The architecture is formed by a printed dipole coupled by a split-ring within an electromagnetic bandgap (EBG) structure for high radiation gains. The printed dipole is placed beneath two dielectric super...

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Main Authors: S. Kawdungta, D. Torrungrueng, H.-T. Chou
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2024-04-01
Series:Radioengineering
Subjects:
Online Access:https://www.radioeng.cz/fulltexts/2024/24_01_0024_0033.pdf
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author S. Kawdungta
D. Torrungrueng
H.-T. Chou
author_facet S. Kawdungta
D. Torrungrueng
H.-T. Chou
author_sort S. Kawdungta
collection DOAJ
description In this paper, a novel tri-band low-cost antenna covering the desired frequencies is presented. The architecture is formed by a printed dipole coupled by a split-ring within an electromagnetic bandgap (EBG) structure for high radiation gains. The printed dipole is placed beneath two dielectric superstrates, and the coupling split-ring is placed on its top. The proposed antenna is excited by the printed dipole with a coaxial connector. It is placed in the middle cavity formed by two dielectric superstrates and a metal reflector as the simple EBG structure. The simulation results show three resonant frequencies at 1.42, 2.39 and 5.40 GHz respectively, with uni-directional radiation patterns and high gains enhanced by the EBG structure. Experimental measurements over an antenna prototype validate the results of reflection coefficients and radiation patterns. It is found that the gains are 8.50, 6.00 and 8.10 dBi at 1.42, 2.39 and 5.00 GHz respectively, which are sufficient for L-band and WiFi applications. In addition, simulation and measurement results are in good agreement.
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spelling doaj.art-8d81c851f5f848fe915d5761b0f68f3b2024-04-22T22:12:15ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122024-04-013312433Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High GainsS. KawdungtaD. TorrungruengH.-T. ChouIn this paper, a novel tri-band low-cost antenna covering the desired frequencies is presented. The architecture is formed by a printed dipole coupled by a split-ring within an electromagnetic bandgap (EBG) structure for high radiation gains. The printed dipole is placed beneath two dielectric superstrates, and the coupling split-ring is placed on its top. The proposed antenna is excited by the printed dipole with a coaxial connector. It is placed in the middle cavity formed by two dielectric superstrates and a metal reflector as the simple EBG structure. The simulation results show three resonant frequencies at 1.42, 2.39 and 5.40 GHz respectively, with uni-directional radiation patterns and high gains enhanced by the EBG structure. Experimental measurements over an antenna prototype validate the results of reflection coefficients and radiation patterns. It is found that the gains are 8.50, 6.00 and 8.10 dBi at 1.42, 2.39 and 5.00 GHz respectively, which are sufficient for L-band and WiFi applications. In addition, simulation and measurement results are in good agreement.https://www.radioeng.cz/fulltexts/2024/24_01_0024_0033.pdfelectromagnetic bandgapsplit-ringsuperstratestri-band
spellingShingle S. Kawdungta
D. Torrungrueng
H.-T. Chou
Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High Gains
Radioengineering
electromagnetic bandgap
split-ring
superstrates
tri-band
title Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High Gains
title_full Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High Gains
title_fullStr Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High Gains
title_full_unstemmed Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High Gains
title_short Split-Ring Coupled Low-Cost Antenna with Electromagnetic Bandgap (EBG) Superstrates to Produce Tri-bands and High Gains
title_sort split ring coupled low cost antenna with electromagnetic bandgap ebg superstrates to produce tri bands and high gains
topic electromagnetic bandgap
split-ring
superstrates
tri-band
url https://www.radioeng.cz/fulltexts/2024/24_01_0024_0033.pdf
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AT dtorrungrueng splitringcoupledlowcostantennawithelectromagneticbandgapebgsuperstratestoproducetribandsandhighgains
AT htchou splitringcoupledlowcostantennawithelectromagneticbandgapebgsuperstratestoproducetribandsandhighgains