Specifically designed tag antenna based on I-Loop structure for UHF RFID applications

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dc.contributor.authorPumpoung, Tajchai
dc.contributor.authorWongsiritorn, Pitchanun
dc.contributor.authorPhongcharoenpanich, Chuwong
dc.contributor.authorKosulvit, Sompol
dc.date.accessioned2026-08-06T10:10:41Z
dc.date.available2026-08-06T10:10:41Z
dc.date.issued2015-01-01
dc.description.abstractThis paper presents the UHF RFID tag antenna designed for the operating frequency band of 920–925 MHz corresponding to the standard of UHF RFID in Thailand. The tag antenna was fabricated by using a thin FR4 substrate (ε<inf>r</inf> = 4.3) with the thickness of 0.25 mm. The pattern of the tag antenna is omnidirectional. The “KMITL” text bent dipole is the technique to reduce the physical size of the tag antenna. The I-loop structure is used to improve the impedances of the tag antenna to achieve the conjugate matching with the IC chip. The impedance of the IC chip at the frequency of 922.5 MHz is 21.29 − j191.7 Ω. The maximum read range is 4.5 m.
dc.identifier.citationLecture Notes in Electrical Engineering, 344, 383-391, 2015
dc.identifier.doi10.1007/978-3-319-17269-9_42
dc.identifier.issn18761100
dc.identifier.other2-s2.0-84942594345
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/6014
dc.sourceLecture Notes in Electrical Engineering
dc.subjectImpedance matching
dc.subjectT-match
dc.subjectTag antenna design
dc.subjectUHF RFID tag Antenna
dc.titleSpecifically designed tag antenna based on I-Loop structure for UHF RFID applications
dc.typeConference Paper

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