基于标准CMOS工艺的UHF无源通讯电源电路设计与实现  

The Design and Implementation of UHF Passive Communication Power Supply Circuit Based on Standard CMOS Technology

作　　者：陈鹏飞[1] 陈许建[1] 喻祖华[1] 戴葵[1] 邹雪城[1] 

机构地区：[1]华中科技大学电子科学与技术系,武汉430074

出　　处：《固体电子学研究与进展》2012年第2期160-165,共6页Research & Progress of SSE

基　　金：国家自然科学基金资助项目(60976027;61076030)

摘　　要：针对UHF射频无源通信系统中,无源射频接收端的电源电路设计难题,以提高其电源转换电路的能量转换效率和输出电压的稳定性为目标,研究了在标准CMOS工艺下实现肖特基二极管的方法,并从理论上推导了其传输特性,提出了一种新型的限压电路,改进了传统带隙结构。与传统结构相比,新的UHF射频无源通信接收端的电源电路的能量转换效率高,开启速度快,输出电压稳定性更好,能够大幅改善射频无源接收电路的工作性能。最后还给出了芯片实现的版图,以及模拟和测试结果。In order to improve the efficiency of the power generation circuit and the stability of the output voltage,this paper aims at the difficult problem regarding the design of the RF passive communication power supply circuit in the UHF passive communication receiver,and calculated the Schottky diode characteristics fabricated in standard CMOS process.A new type of voltage limiter was proposed and the bandgap structure was improved.In comparison with the traditional structure,the new UHF passive communication receiver exhibites better performance in terms of high efficiency,high start speed and stable output voltage.The picture of the chip layout,simulation and testing results are also given.

关 键 词：射频识别 倍压电路 限压电路 

分 类 号：TN432[电子电信—微电子学与固体电子学]