A Miniaturized Spiral Antenna for Energy Harvesting of Implantable Medical Devices

被引：0
|
作者：
Ma, Qingyun [1 ]
Ray, Laxmi [1 ]
Haider, Mohammad Rafiqul [1 ]
机构：
[1] Univ Alabama Birmingham, Dept Elect & Comp Engn, Birmingham, AL 35294 USA
来源：
2014 INTERNATIONAL CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING (ICECE) | 2014年
关键词：
Wireless power transfer; implantable; spiral antenna; biomedical tissue; power transfer efficiency;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In this paper, a wireless power transfer system for implantable medical devices using a miniaturized 3 mm diameter single arm circular spiral antenna is presented. The transmission characteristics, S-21 between the transmitting and receiving antennas with air and tissue as a medium between antennas are analyzed and measured. The receiver antenna receives almost 2 mW average power with power transfer efficiency of 53%. The power transfer efficiency could still reach to 4% with 274 mu W average received power, with placement of 1.5 cm tissue and 1 cm air in between two antennas. With one PN diode rectifier, the total DC power from the receiver side is 489 nW.
引用
收藏
页码：180 / 183
页数：4
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