工作于亚阈值区的低功耗高线性CMOS混频器  

Design of A Low-power and High-linear CMOS Subthreshold Mixer

作　　者：别梅[1] 肖巍[1] 

机构地区：[1]长春师范大学传媒与信息技术学院,吉林长春130032

出　　处：《压电与声光》2016年第6期983-987,共5页Piezoelectrics & Acoustooptics

基　　金：吉林省教育科学规划课题基金资助项目(GH14359);长春师范大学校级课题基金资助项目([2011]009号)

摘　　要：设计了一种采用TSMC 0.13μm CMOS工艺实现的2.4GHz低功耗亚阈值有源混频器,已应用于射频卫星电视接收机中。为了取得较高的线性度,该混频器引入交叉耦合技术以及级间匹配技术,并引入电流注入技术以提高混频器的增益。最终芯片测试结果表明,该混频器在仅消耗1.6mW功耗的状态下,输入三阶交调点IIP3高达5.41dBm,增益高达9.07dB,噪声系数为12.05dB。该混频器的版图尺寸为0.91mm×0.98mm。A 2.4 GHz low-power subthreshold active mixer applied to the satellite RF TV receiver is designed by using TSMC 0.13 μm CMOS technology. To achieve high linearity, the mixer employs the capacitive cross-coupling and interstage matching technique, and the current-bleeding technique is introduced to improve the gain of mixer. The final chip measured results show that the mixer exhibits a input third-order intercept point IIP3 of 5.41 dBm, a gain of 9.07 dB, a noise figure of 12.05 dB, and a low power dissipation of 1.6 mW. The mixer occupies an area of 0. 91 mm×0. 98 mm.

关 键 词：混频器 线性技术 低功耗 亚阈值偏置 电流注入 

分 类 号：TN432[电子电信—微电子学与固体电子学]