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基于CMOS工艺的改进型电流注入混频器 被引量：1

An Improved Current-Inpouring Mixer Based on CMOS Technology
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摘要 设计了一种改进型电流注入混频器。通过在吉尔伯特混频器电路的本振开关管源极引入电感形成谐振电路,消除了开关管源极寄生电容的影响,降低了混频器电路的闪烁噪声,增大了混频器电路的增益。混频器电路的设计采用SMIC 0.35μm CMOS工艺库,本振功率为-3 dBm。仿真结果表明,与改进前的混频器电路相比,当本振功率为-3 dBm时,改进型电流注入混频器电路的增益提高了1.76 dB,IIP3提高2.1 dBm,噪声系数降低了0.5 dB。 An improved current-inpouring CMOS mixer was designed. The conversion gain of the mixer was increased and the flicker noise was reduced by inserting an inductor at the source of LO switch transistors in Gilbert mixer to form a resonant circuit, which eliminated effects of parasitic capacitors. Designed with SMIC＇s 0. 35 μm CMOS process, the mixer has an LO power of -3 dBm. Simulation results showed that, for an LO power of -3 dBm, the proposed mixer had a 1.76 dB increase in conversion gain, a 2. 1 dBm improvement in IIP3, and 0. 5 dB reduction in noise figure, compared with the mixer before modification.
作者 程知群 李进 傅开红 周云芳 徐胜军 张胜
机构地区 杭州电子科技大学射频电路与系统教育部重点实验室
出处 《微电子学》 CAS CSCD 北大核心 2009年第6期811-814,共4页 Microelectronics
基金 国家自然科学基金资助项目(60776052)
关键词 吉尔伯特混频器 电流注入 闪烁噪声 增益 Gilbert mixer Current-inpouring Flicker noise Gain
分类号 TN773 [电子电信—电路与系统]
  • 相关文献

参考文献8

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共引文献13

同被引文献6

  • 1Ho S S K,Saavedra C E. A CMOS Broadband Low-Noise Mixer With Noise Cancellation[J].IEEE Transactions on Microwave Theory and Techniques,2010,(05):1126-1132.doi:10.1109/TMTT.2010.2045568.
  • 2Ahn D,Kim D W,Hong S. A K-Band High-Gain Down-Conversion Mixer in 0.18μm CMOS Technology[J].IEEE Microwave and Wireless Components Letters,2009,(04):227-229.
  • 3Yoon D Y,Yun S J,Cartwright J. A High Gain Low Noise Mixer With Cross-Coupled Bleeding[J].IEEE Microwave and Wireless Components Letters,2011,(10):568-570.
  • 4Chen W H,Liu G,Zdravko B. A Highly Linear Broadband CMOS LNA Employing Noise and Distortion Cancellation[J].IEEE Journal of Solid-State Circuits,2008,(05):1164-1176.doi:10.1109/JSSC.2008.920335.
  • 5Yoon J,Kim H,Park C. A New RF CMOS Gilbert Mixer With Improved Noise Figure and Linearity[J].IEEE Transactions on Microwave Theory and Techniques,2008,(03):626-631.doi:10.1109/TMTT.2008.916942.
  • 6谷江,毛陆虹,门春雷.一种电流注入式零中频正交混频器[J].固体电子学研究与进展,2012,32(3):281-285. 被引量：5

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微电子学
2009年 第6期

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