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UHF RFID split-ring resonator tag antenna inductively coupled feed for metallic object


Erman, Fuad Naim Ahmed and Ismail, Alyani and Raja Abdullah, Raja Syamsul Azmir and Alhawari, Adam Reda Hasan and Shabaneh, Arafat Abdallah Abdelwadod (2015) UHF RFID split-ring resonator tag antenna inductively coupled feed for metallic object. In: 2015 IEEE 12th Malaysia International Conference on Communications (MICC 2015), 23-25 Nov. 2015, Kuching, Sarawak, Malaysia. (pp. 74-76).


In this paper, a split-ring resonator and an inductively coupled feed technique are designed to improve the RFID tag antennas performance. The presented tag antenna consists of two symmetrical C-shaped resonators with strip line in order to feed the radiating split-ring resonator structures by implementing an inductively coupled feed approach placed on the upper surface of Polytetrafluoroethylene substrate. By selecting a proper length and width of spilt-ring resonator structures, along with desirable coupling distance between two symmetrical C-shaped resonators and spilt-ring resonator structures, the input impedance of tag antenna can be obtained, which leads to attain an excellent conjugate match between antenna and IC chip. The proposed feeding technique and spilt-ring resonator structures offer a better performance of RFID tag among antenna size, reflection coefficient, and gain. The gain of the designed tag antenna is -2.272 dB at its operating frequency (916 MHz), the tag antenna is mounted on a square perfect electrical conductor of 200 mm side length, while the thickness of PEC is 1 mm. The simulation results were verified by the presented method via enhancing the performance of tag antennas for metallic object.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/MICC.2015.7725410
Publisher: IEEE
Keywords: Antenna gain; Input impedance; Passive tag; Radio frequency identification (RFID); Split-ring resonator (SSR)
Depositing User: Nabilah Mustapa
Date Deposited: 31 Jul 2017 04:13
Last Modified: 31 Jul 2017 04:13
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/MICC.2015.7725410
URI: http://psasir.upm.edu.my/id/eprint/56255
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