NDLI: An MNG-TL loop antenna for UHF near-field RFID applications

Content Provider	IEEE Xplore Digital Library
Author	Hu Liu Ying Liu Shuxi Gong
Copyright Year	2014
Description	Author affiliation: Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi'an, China (Hu Liu; Ying Liu; Shuxi Gong)
Abstract	A loop antenna is designed and fabricated for ultra-high frequency (UHF) near-field radio frequency identification (RFID) readers. The artificial mu-negative transmission line (MNG-TL) structure has been applied to the antenna design, which will help the current distribution along the loop to keep in phase even with the perimeter of the loop more than two operating wavelengths. Thus the antenna can generate strong and uniform magnetic field with a large interrogation zone. Simulation results indicate that a relatively large impedance bandwidth from 762.2MHz to 1004.8MHz has been obtained. The overall size of the antenna is 216mm×216mm and a large interrogation zone with uniform and strong magnetic field distribution of up to 187.2mm × 187.2mm has been achieved.
Starting Page	473
Ending Page	475
File Size	2975240
Page Count	3
File Format	PDF
e-ISBN	9781479943548
DOI	10.1109/APCAP.2014.6992530
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dipole antennas Near-field UHF antennas RFID Magnetic fields MNG-TL Radiofrequency identification Antenna radiation patterns Loop antenna
Content Type	Text
Resource Type	Article

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