Antenna efficiency calculations for electrically small, RFID antennas

被引：41
作者：
Galehdar, Amir [1 ]
Thiel, David V. [1 ]
O'Keefe, Steven G. [1 ]
机构：
[1] Griffith Univ, Ctr Wireless Monitoring & Applicat, Nathan, Qld 4111, Australia
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2007年 / 6卷
关键词：
antenna efficiency; numerical electromagnetic code (NEC); radio frequency identification (RFID); Wheeler cap; wire antennas;
D O I：
10.1109/LAWP.2007.891960
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：
Radio frequency identification (RFID) antenna efficiency is an important component of link budget design. A method of moments technique based on the summation of segment currents compares favorably with two different results obtained using the finite element method (radiation pattern integration and Wheeler. cap). The efficiency of a resonant dipole was found to be proportional to the inverse square root of the conductivity. For a typical RFID meander line antenna in free space the relationship is more severe.
引用
收藏
页码：156 / 159
页数：4
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