用于2.4GHz射频识别的硅基集成小环天线的仿真与设计  

Simulation and Design of On-Chip Loop Antenna for 2.4GHz RFID Application

作　　者：王振华[1] 张春[1] 李永明[1] 王志华[1] 

机构地区：[1]清华大学深圳研究生院集成电路实验室,深圳518055

出　　处：《微波学报》2007年第3期24-28,共5页Journal of Microwaves

基　　金：北京市科技计划项目(D0305003040111)

摘　　要：以应用于2.4GHz频段的射频识别标签为背景,对硅基集成小环天线的阻抗特性和辐射特性进行了理论计算和仿真,并以仿真结果为依据,设计了一个用于2.4GHz频段射频识别标签的硅基集成天线。文中同时给出了天线设计时的一些调节和优化方法。测试结果表明,利用1.8mm×1.8mm的硅基集成天线,在等效发射功率为25dBm时,通过整流电路可以输出1.2V电压、15μA负载电流。This paper deals with on-chip antennas integrated on silicon wafers for 2.4GHz RFID applications. Electrical characteristics and radiation characteristics of loop antennas were calculated and simulated. Based on the results from calculations and simulations, an on-chip loop antenna was designed for a RFID tag used in 2.4GHz. This paper also gives some guidelines on the design of on-chip loop antennas. Measured results show that 1.2V power supply and 15uA load current can be obtained from a on-chip rectifier with 25dBm EIRP, with the on-chip antenna of 1.8mm × 1.8mm chip.

关 键 词：硅基集成天线 射频识别 低压低功耗 

分 类 号：TN826[电子电信—信息与通信工程]