The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Cette étude a proposé une nouvelle méthode de découplage pour quatre antennes planaires à F inversé (PIFA) fonctionnant à 2.0 GHz (f0). Les espacements bord à bord et centre à centre des PIFA adjacents sont extrêmement faibles (0.05λ0 et 0.17λ0, respectivement), ce qui entraîne un fort couplage mutuel entre eux. Dans notre précédente étude, nous avions proposé une structure composée d'éléments parasites (PE) et d'une ligne pont (BL) pour le découplage de deux PIFA. Une caractéristique intéressante de la méthode proposée est qu’aucun ajustement de la structure et de la taille d’origine des PIFA n’est nécessaire. Cependant, à mesure que le nombre de PIFA augmente jusqu'à quatre, leur découplage devient considérablement plus compliqué et la désadaptation d'impédance est également un problème à prendre en compte. Par conséquent, dans cette étude, les PE et les BL sont développés fonctionnellement pour obtenir simultanément un faible couplage mutuel et une meilleure adaptation d’impédance des quatre PIFA. Les résultats simulés ont montré que le chargement des PE et BL proposés sur les quatre PIFA pourrait réduire et maintenir tout couplage mutuel à moins de -10 dB, et améliorer simultanément l'adaptation d'impédance. Par conséquent, l'efficacité totale de l'antenne à 2.0 GHz pourrait être considérablement améliorée, passant de 64.2 % à 84.8 % pour PIFA1 et PIFA4, et de 35.9 % à 74.2 % pour PIFA2 et PIFA3. Quatre PIFA avec PE et BL ont été fabriqués et mesurés pour valider les résultats de la simulation.
Quang Quan PHUNG
National Defense Academy
Tuan Hung NGUYEN
Le Quy Don Technical University
Naobumi MICHISHITA
National Defense Academy
Hiroshi SATO
Panasonic System Networks R&D Lab.
Yoshio KOYANAGI
Panasonic System Networks R&D Lab.
Hisashi MORISHITA
National Defense Academy
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Quang Quan PHUNG, Tuan Hung NGUYEN, Naobumi MICHISHITA, Hiroshi SATO, Yoshio KOYANAGI, Hisashi MORISHITA, "Decoupling Method for Four Closely Spaced Planar Inverted-F Antennas Using Parasitic Elements and Bridge Lines" in IEICE TRANSACTIONS on Communications,
vol. E106-B, no. 11, pp. 1154-1164, November 2023, doi: 10.1587/transcom.2022EBP3190.
Abstract: This study proposed a novel decoupling method for four planar inverted-F antennas (PIFAs) operating at 2.0GHz (f0). The edge-to-edge and center-to-center spacings of the adjacent PIFAs are extremely small (0.05λ0 and 0.17λ0, respectively), resulting in strong mutual coupling among them. In our previous study, we proposed a structure consisting of parasitic elements (PEs) and a bridge line (BL) for the decoupling of two PIFAs. One attractive feature of the proposed method is that no adjustment of the original structure and size of the PIFAs is necessary. However, as the number of PIFAs increases to four, their decoupling becomes considerably more complicated, and impedance mismatch is also an issue to be considered. Therefore, in this study, PEs and BLs are functionally developed to simultaneously achieve low mutual coupling and improved impedance matching of the four PIFAs. The simulated results showed that loading the proposed PEs and BLs onto the four PIFAs could reduce as well as maintain all mutual coupling for less than -10dB, and simultaneously improve impedance matching. Therefore, the total antenna efficiency at 2.0GHz could be significantly improved from 64.2% to 84.8% for PIFA1 and PIFA4, and from 35.9% to 74.2% for PIFA2 and PIFA3. Four PIFAs with PEs and BLs were fabricated and measured to validate the simulation results.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2022EBP3190/_p
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@ARTICLE{e106-b_11_1154,
author={Quang Quan PHUNG, Tuan Hung NGUYEN, Naobumi MICHISHITA, Hiroshi SATO, Yoshio KOYANAGI, Hisashi MORISHITA, },
journal={IEICE TRANSACTIONS on Communications},
title={Decoupling Method for Four Closely Spaced Planar Inverted-F Antennas Using Parasitic Elements and Bridge Lines},
year={2023},
volume={E106-B},
number={11},
pages={1154-1164},
abstract={This study proposed a novel decoupling method for four planar inverted-F antennas (PIFAs) operating at 2.0GHz (f0). The edge-to-edge and center-to-center spacings of the adjacent PIFAs are extremely small (0.05λ0 and 0.17λ0, respectively), resulting in strong mutual coupling among them. In our previous study, we proposed a structure consisting of parasitic elements (PEs) and a bridge line (BL) for the decoupling of two PIFAs. One attractive feature of the proposed method is that no adjustment of the original structure and size of the PIFAs is necessary. However, as the number of PIFAs increases to four, their decoupling becomes considerably more complicated, and impedance mismatch is also an issue to be considered. Therefore, in this study, PEs and BLs are functionally developed to simultaneously achieve low mutual coupling and improved impedance matching of the four PIFAs. The simulated results showed that loading the proposed PEs and BLs onto the four PIFAs could reduce as well as maintain all mutual coupling for less than -10dB, and simultaneously improve impedance matching. Therefore, the total antenna efficiency at 2.0GHz could be significantly improved from 64.2% to 84.8% for PIFA1 and PIFA4, and from 35.9% to 74.2% for PIFA2 and PIFA3. Four PIFAs with PEs and BLs were fabricated and measured to validate the simulation results.},
keywords={},
doi={10.1587/transcom.2022EBP3190},
ISSN={1745-1345},
month={November},}
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TY - JOUR
TI - Decoupling Method for Four Closely Spaced Planar Inverted-F Antennas Using Parasitic Elements and Bridge Lines
T2 - IEICE TRANSACTIONS on Communications
SP - 1154
EP - 1164
AU - Quang Quan PHUNG
AU - Tuan Hung NGUYEN
AU - Naobumi MICHISHITA
AU - Hiroshi SATO
AU - Yoshio KOYANAGI
AU - Hisashi MORISHITA
PY - 2023
DO - 10.1587/transcom.2022EBP3190
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E106-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2023
AB - This study proposed a novel decoupling method for four planar inverted-F antennas (PIFAs) operating at 2.0GHz (f0). The edge-to-edge and center-to-center spacings of the adjacent PIFAs are extremely small (0.05λ0 and 0.17λ0, respectively), resulting in strong mutual coupling among them. In our previous study, we proposed a structure consisting of parasitic elements (PEs) and a bridge line (BL) for the decoupling of two PIFAs. One attractive feature of the proposed method is that no adjustment of the original structure and size of the PIFAs is necessary. However, as the number of PIFAs increases to four, their decoupling becomes considerably more complicated, and impedance mismatch is also an issue to be considered. Therefore, in this study, PEs and BLs are functionally developed to simultaneously achieve low mutual coupling and improved impedance matching of the four PIFAs. The simulated results showed that loading the proposed PEs and BLs onto the four PIFAs could reduce as well as maintain all mutual coupling for less than -10dB, and simultaneously improve impedance matching. Therefore, the total antenna efficiency at 2.0GHz could be significantly improved from 64.2% to 84.8% for PIFA1 and PIFA4, and from 35.9% to 74.2% for PIFA2 and PIFA3. Four PIFAs with PEs and BLs were fabricated and measured to validate the simulation results.
ER -