低压NMOS衬底偏置折叠级联输入Gilbert混频器

宋丹; 张晓林; 夏温博

低压NMOS衬底偏置折叠级联输入Gilbert混频器

北京航空航天大学电子信息工程学院, 北京 100191

基金项目: 国防科工委民用航天专项基金资助项目

详细信息

中图分类号: TN 47
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出版历程
- 收稿日期: 2007-06-20
- 网络出版日期: 2008-07-31

Low voltage NMOS bulk-biased folded-cascode Gilbert mixer

School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 利用衬底偏置技术和折叠级联输入的方法,采用SMIC 0.18 μm CMOS工艺,解决了在0.8 V电源电压下输入管和开关管的"堆叠"问题,实现了一种低压N沟道金属-氧化物-半导体场效应晶体管衬底偏置折叠级联输入Gilbert混频器,用于某双系统接收机.以其中的GPS(Global Position System)系统为例:射频信号、本振信号和中频信号分别为1575.42MHz,1570MHz和5.42MHz.测试表明:该混频器变频增益超过15.66dB,双边带噪声系数为16.5dB,输入1dB压缩点约为-10dBm,在0.8V的电源电压条件下,消耗功率约为1.07mW.该混频器功耗低、增益高、线性度好,可用于航空航天领域的电子系统.
- 双系统接收机 /
- 低电压 /
- 衬底偏置 /
- 折叠级联 /
- 混频器
Abstract: By using the bulk-biased technology and folded-cascode approach, the problem of stacking input-and switching-transistors within 0.8V supply voltage was solved. A low voltage N channel metal-oxide-semiconductor (NMOS)bulk-biased folded-cascode Gilbert mixer (BBFCM) was implemented in a SMIC 0.18μm CMOS process. The mixer was used in some double-system receiver, which includes the global position system(GPS) system. In order to test the performance of the mixer, take the GPS signal for example:the frequency of the radio frequency (RF) signal, local oscillator (LO) and the intermediate frequency (IF) signal are 1575.42MHz,1570MHz and 5.42MHz, respectively. Measurement results show that the mixer features a conversion gain (G_c) of higher than 15.66dB, a dual sideband (DSB) noise figure of 16.5dB, an input 1dB compression point (P_-1dB) of approximate -10dBm, and consumes approximate 1.07mW at a power supply voltage of 0.8V.Although the mixer consumes very low power, it still provides reasonable gain as well as linearity. The mixer can be applied to the electronics system within the realm of the aviation aerospace.
- double-system receiver /
- low voltage /
- bulk-biased /
- folded-cascode /
- mixer

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参考文献(1)

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