Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process

The fabrication of flexible antennas for RFID applications can be divided into subtractive and additive methods. In this study, a low-cost additive method is proposed, which involves printing aluminum paste and utilizing a galvanic replacement reaction. Through a galvanic replacement process, copper...

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Main Authors: Pandi Divya, Wen-Hsi Lee
Format: Article
Language:English
Published: Hindawi Limited 2023-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2023/8477138
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author Pandi Divya
Wen-Hsi Lee
author_facet Pandi Divya
Wen-Hsi Lee
author_sort Pandi Divya
collection DOAJ
description The fabrication of flexible antennas for RFID applications can be divided into subtractive and additive methods. In this study, a low-cost additive method is proposed, which involves printing aluminum paste and utilizing a galvanic replacement reaction. Through a galvanic replacement process, copper sulfate waste effluent was employed to convert the aluminum electrode into a highly conductive copper electrode. The physical characteristics of the Cu electrode, such as surface flatness, thickness, and Al-Cu conversion ratio, were studied. The Cu electrode, produced using an innovative additive technique at a temperature of 75°C for 15 minutes, exhibits the lowest resistivity of 5.89 × 10–8 Ωm. This resistivity is comparable to that of a commercial silver thick film electrode, making it suitable for use in manufacturing RFID antennas for RFID module applications. With an S11 of −40 dB at 1.26 GHz, a maximum gain of 2.87 dBi, a maximum efficiency of 53.63%, and a reading distance of 9 meters, the RFID module demonstrates impressive performance. The reading distance of an RFID module with a copper foil antenna is longer (8.5 meters).
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spelling doaj.art-bd781cb4327e4f77a800ebfc143dfc602023-10-05T00:00:02ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58772023-01-01202310.1155/2023/8477138Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive ProcessPandi Divya0Wen-Hsi Lee1Department of Electrical EngineeringDepartment of Electrical EngineeringThe fabrication of flexible antennas for RFID applications can be divided into subtractive and additive methods. In this study, a low-cost additive method is proposed, which involves printing aluminum paste and utilizing a galvanic replacement reaction. Through a galvanic replacement process, copper sulfate waste effluent was employed to convert the aluminum electrode into a highly conductive copper electrode. The physical characteristics of the Cu electrode, such as surface flatness, thickness, and Al-Cu conversion ratio, were studied. The Cu electrode, produced using an innovative additive technique at a temperature of 75°C for 15 minutes, exhibits the lowest resistivity of 5.89 × 10–8 Ωm. This resistivity is comparable to that of a commercial silver thick film electrode, making it suitable for use in manufacturing RFID antennas for RFID module applications. With an S11 of −40 dB at 1.26 GHz, a maximum gain of 2.87 dBi, a maximum efficiency of 53.63%, and a reading distance of 9 meters, the RFID module demonstrates impressive performance. The reading distance of an RFID module with a copper foil antenna is longer (8.5 meters).http://dx.doi.org/10.1155/2023/8477138
spellingShingle Pandi Divya
Wen-Hsi Lee
Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process
International Journal of Antennas and Propagation
title Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process
title_full Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process
title_fullStr Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process
title_full_unstemmed Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process
title_short Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process
title_sort fabrication of a flexible rfid antenna by using the novel environmentally friendly additive process
url http://dx.doi.org/10.1155/2023/8477138
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