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Dual‐resonance compact circularly polarized reader antenna for UHF RFID applications
Author(s) -
Tang Zhijun,
Zhan Jie,
Liu Hongli
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27136
Subject(s) - microwave , ultra high frequency , antenna (radio) , physics , slot antenna , optics , resonance (particle physics) , square (algebra) , radiation pattern , engineering , electrical engineering , telecommunications , mathematics , geometry , atomic physics
A novel dual‐resonance ultrahigh frequency radiofrequency identification reader antenna at 868 or 915 MHz is proposed which has a square metal patch with two truncated corners, four inserted slits of equal lengths, a circular slot, and a substrate with two rectangular slots. The antenna achieves 70 MHz bandwidths, 3.7 dBi gains, and a good radiation pattern. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2531–2533, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27136