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单片UHF RFID阅读器中VCO及其预分频器设计 被引量：2

A Low-Phase-Noise VCO with Prescaler for Monolithic UHF RFID Reader
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摘要 提出了一种应用于860～960MHz UHF波段单片射频识别(RFID)阅读器的低相位噪声CMOS压控振荡器(VCO)及其预分频电路。VCO采用LC互补交叉耦合结构,利用对称滤波技术改善相位噪声性能,预分频电路采用注入锁定技术,用环形振荡结构获得了较宽的频率锁定范围。电路采用UMC0.18μm CMOS工艺实现,测试结果表明:VCO输出信号频率范围为1.283～2.557GHz,预分频电路的频率锁定范围为66.35%,输出四相正交信号。芯片面积约为1mm×1mm,当PLL输出信号频率为895.5MHz时,测得其相位噪声为-132.25dBc/Hz@3MHz,电源电压3.3V时,电路消耗总电流为8mA。 A low phase noise CMOS LC VCO with prescaler for monolithic UHF RFID reader was proposed. A symmetrical filtration technology was adopted to suppress noise for complementary cross coupled LC VCO. Injection locked prescaler with ring oscillator core can provide wide locking range. Implemented with UMC 0. 18μm RF/MM CMOS technology, the proposed LC VCO covers a tuning range from 1. 283 GHz to 2. 557 GHz, and the prescaler has a locking range of 66.35% with in-phase and quadrature output. Test results showed that the PLL had a phase noise of-132. 25 dBc/Hz at 3 MHz offset from 895.5 MHz, while drawing 8 mA of power from a 3.3 V supply.
作者 陈子晏 谢传文 陈磊 马和良 张润曦 赖宗声 景为平
机构地区 华东师范大学微电子电路与系统研究所 华东师范大学纳光电集成与先进装备教育部工程研究中心 南通大学江苏省专用集成电路设计重点实验室
出处 《微电子学》 CAS CSCD 北大核心 2008年第5期708-712,共5页 Microelectronics
基金 上海市国际合作基金资助项目(07SA04) 上海市科委资助项目(06SA14) 上海重点学科建设项目(B411) 江苏省ASIC重点实验室基金资助项目(JSICK0601)
关键词 低相位噪声 阅读器 射频识别 压控振荡器 预分频电路 Low phase noise Reader RF ID VCO Prescaler
分类号 TN431.1 [电子电信—微电子学与固体电子学]
  • 相关文献

参考文献11

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二级参考文献22

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共引文献10

同被引文献16

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引证文献2

微电子学
2008年 第5期

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