Robust Antenna Concept for RFID Tag Applications

被引：0
|
作者：
Alrabadi, Osama N. [1 ]
Tsakalaki, Elpiniki [1 ]
Pedersen, Gert F. [1 ]
机构：
[1] Aalborg Univ, Dept Elect Syst, Antennas Propagat & Radio Networking APNet Grp, DK-9220 Aalborg, Denmark
来源：
2013 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI) | 2013年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The paper proposes an approach for immunizing the input impedance of a tag-antenna against disturbances by the proximity effect of external objects. The idea is to drive two symmetric closely-spaced antennas with out-of-phase excitations, resulting in a differential input impedance. When an object is placed in the close proximity of the antenna system, the coupling with the two symmetric antennas will be comparable over a wide range of angles around the array broadside. In such a coupling scenario the differential input impedance is maintained compared to its free-space value.
引用
收藏
页码：1492 / 1493
页数：2
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