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Miniaturized microstrip array for the UHF-band RFID reader

✍ Scribed by Ze-hai Wu; Sheng-li Lai

Book ID
102517478
Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
475 KB
Volume
48
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this paper, a new array antenna composed of Koch fractal microstrip patches for the UHF‐band RFID reader is proposed. The investigation shows that the coupling factor of two fractal patches in the E‐plane is much larger than that in the H‐plane, and the coefficients are smaller than that of the rectangular patch. The characteristics of the Koch array antenna have been demonstrated by experiment results: when the patch iteration factor is 0.25, the 2 Γ— 2 fractal is 22.77% smaller than the rectangular array, and antenna gain at 915 MHz is 9.9 dB, yielding a 7‐m identification‐read range when incorporated with the RFID modules. Β© 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1299–1301, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21617

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