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U-shaped inductively coupled feed RFID tag antenna for gain enhancement


Alhawari, Adam Reda Hasan and Ismail, Alyani and Jalal, Ali Sadeq Abdulhadi and Raja Abdullah, Raja Syamsul Azmir and A. Rasid, Mohd Fadlee (2013) U-shaped inductively coupled feed RFID tag antenna for gain enhancement. In: 2013 IEEE International Conference on RFID-Technologies and Applications (RFID-TA), 4-5 Sept. 2013, Johor Bahru, Malaysia. .

Abstract / Synopsis

An inductively coupled feed novel technique is proposed to enhance the performance of RFID tag antennas. The applied feeding concept comprises of two opposing symmetrical U-shaped structures to feed a radiating body. It is a simple alternative to effectively match between the antenna impedance with the chip impedance from the flexible augmentation of equivalent inductance to the radiating body. The proposed feeding method offers better expectation of performance among antenna size, impedance, and gain at the size of 50 × 70 × 1.6 mm3. The peak gain of the proposed tag antenna is 2.5 dBi at its operating frequency, which is higher among conventional tag antennas. Measured results indicate that this tag antenna has a good impedance matching characteristic at 904-937 MHz (power reflection coefficient better than -3 dB). The comparison between the simulation and measurement results verified the proposed technique capability to improve overall performance of the tag antennas.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
Institute of Advanced Technology
DOI Number:
Publisher: IEEE
Keywords: RFID; Antenna gain; Impedance matching; Inductively coupled feed; Tag antenna
Depositing User: Nabilah Mustapa
Date Deposited: 26 Apr 2016 09:46
Last Modified: 26 Apr 2016 09:46
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