The Status and Trends of Silicon-based Millimeter-wave Radar SoCs
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摘要:
毫米波雷达具备全天候复杂环境下的工作能力,在汽车雷达、智能机器人等方面有广泛的应用。同时,随着半导体技术的快速发展,硅基工艺晶体管的截止频率提升,硅基毫米波雷达成为研究热点,大量的工作从系统设计、电路设计等方面提高毫米波雷达的性能。该文从系统和核心电路等方面对硅基毫米波雷达芯片的研究现状和发展趋势进行综述。
Abstract:The millimeter wave radar is robust against various environments such as rain, fog, snow. It has huge potentials in applications such as automotive radars, intelligent robots. At the same time, the rapid development of silicon technology improves the cut off frequency of the transistor, which make it possible to implement low cost millimeter wave radar SoCs in silicon. Recently a lot of research is dedicated to improve the performance of the silicon based millimeter wave SoCs from both system level and key building blocks level. The current research status and future trends of the silicon based millimeter wave radar SoCs are reviewed in this paper.
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Key words:
- Millimeter-Wave Radar /
- Silicon /
- SoCs
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图 1 毫米波汽车雷达和谷歌Soli项目[14]
图 5 文献[34]中基于DSM小数型锁相环的FMCW信号发生器
图 7 全数字锁相环用于毫米波FMCW信号产生[37]
图 9 4种4阶匹配网络[66]
图 10 4种4阶匹配网络的频率响应对比[66]
图 11 基于变压器耦合谐振腔的特性[67]
图 13 片上传输线与键合线协同设计以提高其带宽[81]
图 14 工作在60 GHz的键合线天线,增益为4 dBi[80]
图 15 文献[82]倒封装
图 16 封装天线示意图[84]
图 17 在封装中集成了2×2的接收天线阵列以及1×2的发射天线阵列[13]
图 20 两点调制基本原理[39]
图 21 采用LMS相关算法校准高通支路与低通支路的匹配[39]
表 1 FMCW信号发生器性能汇总
文献编号 [5] [27] [28] [33] [34] [37] [42] [43] 工艺 65 nm CMOS, 65 nm CMOS, 65 nm CMOS, 90 nm CMOS, 65 nm CMOS, 65 nm CMOS, 65 nm CMOS, 40 nm CMOS, 结构 DSM小数环 DSM小数环 DSM小数环 DDFS整数环 DSM小数环 全数字小数环 混合信号小数环 CTDSM小数环 频率(GHz) 76.0 76~81 77 77 76 60 83 37 扫频带宽(GHz) 0.700 0.500 1.930 0.614 0.700 1.220 1.500 0.500 RMS频差(kHz) 64 ±961 674 >1000 <73 117 <180 820 功耗(mW) 73.0 320.0 N/A 101.0 51.4 48.0 152.0 68.0 面积(mm2) N/A 2.74 0.44 ~0.50 0.29 0.72 1.70 0.18 表 2 硅基毫米波功率放大器性能汇总
文献编号 [49] [50] [51] [52] [53] [54] [55] [56] [57] 工艺 45 nm
CMOS SOI45 nm
CMOS SOI65 nm
CMOS28 nm
UTBB
FD-SOI40 nm
CMOS65 nm
CMOS40 nm
CMOS0.13 μm
SiGe
BiCMOS45 nm
CMOS
SOI结构 堆叠 堆叠 堆叠 功率合成 功率合成 功率合成 功率合成 功率合成 功率合成 频率(GHz) 41.0 45.0 60.0 60.0 60.0 60.0 70.3~85.5 42.0 60.0 电源电压(V) 5.0 2.7 2.5 1.0 1.0 1.0 0.9 4.0/2.4 2.2 PSAT(dBm) 21.6 18.6~19.4 17.6 18.9 17.4 17.7 20.9 28.4 30.1 PAEMAX(%) 25.1 32.0~33.9 20.4 17.7 28.5 11.1 22.3 10.0 20.8 增益(dB) 8.9 9.5 23.5 35.0 21.2 19.2 18.1 18.5 24.7 面积(mm2) 0.300 0.300 0.240 0.162 0.074 0.830 0.190 5.550 6.600 -
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