Loop Antenna Design for Lateral H-Field Uniformity in Misaligned HF-RFID Links

被引：0
|
作者：
Eteng, A. A. [1 ]
Rahim, S. K. A. [1 ]
Leow, C. Y. [1 ]
Sabran, M. I. [1 ]
Yusof, M. F. M. [1 ]
机构：
[1] Univ Teknol Malaysia, Wireless Commun Ctr, Skudai 81310, Johor, Malaysia
来源：
2014 IEEE SYMPOSIUM ON WIRELESS TECHNOLOGY AND APPLICATIONS (ISWTA) | 2014年
关键词：
coupling coefficient; H-field; lateral uniformity; loop antenna;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
The performance of High-Frequency Radio Frequency Identification (HF-RFID) links depends on the alignment of the magnetically coupled interrogator and transponder antenna pairs. In this paper, we propose a design method to achieve lateral uniformity in the H-field of circular interrogator loop antennas to reduce the effect of lateral antenna misalignment. This is achieved by parametrically adjusting the radii of antenna turns to minimize the range of H-field variation at a given read-out distance. This design approach results in an enhancement of the axial H-field, while achieving minimal variation in the lateral H-field profile.
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页数：4
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