Geometrical Enhancement of Planar Loop Antennas for Inductive Near-Field Data Links

被引：10
|
作者：
Eteng, Akaa Agbaeze [1 ]
Rahim, Sharul Kamal Abdul [1 ]
Leow, Chee Yen [1 ]
机构：
[1] Univ Teknol Malaysia, Wireless Commun Ctr, Skudai 81310, Malaysia
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷
关键词：
Coupling coefficient; near-field; planar loop antenna; Q-factor; H-FIELD; DESIGN; SYSTEMS;
D O I：
10.1109/LAWP.2015.2423276
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The low Q-factor requirements of High-Frequency Radio Frequency Identification (HF-RFID) interrogator antennas constrain transmission performance when they are used in data links requiring similar terminal antennas. This letter presents a geometrical approach to enhance the transmission performance of planar loop antennas without a significant change to their standalone performance as HF-RFID interrogator antennas. The method distributes the turns of a modified planar square loop antenna to enhance the coupling level in a symmetric link, while limiting the change in Q-factor from a conventional HF-RFID interrogator antenna. Results from a presented test case show that the design method enables a 5.75% increase in peak transmission coefficient, and a 28.42% fractional bandwidth increase in a symmetric link, compared to a conventional design.
引用
收藏
页码：1762 / 1765
页数：4
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