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Design of a 4.224GHz Quadrature LC-VCO 被引量：1

一种4·224GHz正交压控振荡器的设计(英文)
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摘要 A 4. 224GHz quadrature voltage-controlled oscillator （QVCO） applied in MB-OFDM UWB synthesizers is implemented in 0.18μm RF-CMOS technology. An improved structure of the QVCO is presented for better phase noise. A novel configuration of a MOS varactor is designed for good linearity of K as well as a new digital capacitor controlled array topology with lower parasitic capacitance and lower Ron. Measurement results show a phase noise of - 90.4dBc/Hz at 100kHz offset and - 116.7dBc/Hz at 1MHz offset from a carrier close to 4. 224GHz. The power dissipation is 10. 55mW from a 1.8V supply. 设计了一种应用于MB-OFDM UWB射频频率综合器的工作于4 .224GHz的正交压控振荡器( QVCO) ,并采用0.18μm RF-CMOS工艺进行了设计实现.该QVCO通过改进结构能够得到更好的相位噪声.通过改变MOS变容管的接入方法实现了更好的压控增益线性度,并采用了新的低寄生电容、低导通电阻的数控电容阵列结构来补偿工艺变化带来的频率变化.测试结果表明,该QV-CO在4.224GHz附近的100kHz频偏处的相位噪声为-90.4dBc/ Hz ,1 MHz频偏处的相位噪声为-116.7dBc/ Hz ,整个QVCO电路功耗为10.55 mW,电源电压为1.8 V.
作者 李志升 李巍 李宁
机构地区 复旦大学专用集成电路与系统国家重点实验室
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2008年第2期251-255,共5页 半导体学报（英文版）
基金 国家部级十一五项目资助(批准号:51308020403)~~
关键词 UWB quadrature VCO phase noise VARACTOR DCCA quadrature performance UWB 正交压控振荡器 相位噪声 变容管 数控电容阵列 正交匹配性
分类号 TN752 [电子电信—电路与系统]
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参考文献15

  • 1Multi band OFDM physical layer proposal for IEEE 802.15.3a. IEEE Standard 802.15.3a-2004,2004.
  • 2Rofougaran A, Rael J, Rofougaran M, et al. A 900MHz CMOS LC-oscillator with quadrature outputs. Digest of Technical Papers of IEEE 43rd International Solid-State Circuits Conference, 1996 : 392.
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同被引文献1

  • 1Ph.D.Candidate:Sun JianXi’an University of Technolgy, Xi’an 710048, ChinaSupervisor:Yu Changzhao (Tsinghua University, Beijing 100084, China)Li Yuzhu (Tsinghua University, Beijing 100084, China)Chen Changzhi (Tsinghua University, Beijing 100084, China)Members of Dissertation Defense Committee:Gao Jizhang (China Institute of Water Resources and Hydropower Research), ChairmanLi Guifen (China Institute of Water Resources and Hydropower Research)Cui Guangtao (Tianjing University)Wang Xingkui (Tsinghua University)Yu Changzhao (Tsinghua University)Li Yuzhu (Tsinghua University)Chen Changzhi (Tsinghua University).FLOOD DISCHARGE AND ENERGY DISSIPATION BY JETS FROM OUTLETS IN HIGH ARCH DAM[J].Journal of Hydrodynamics,2003,15(1):122-122. 被引量：39

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Journal of Semiconductors
2008年 第2期

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