用于毫米波雷达频率源的四倍频器设计  

Quadrupler Design for Millimeter-Wave Radar Frequency Source

作　　者：王梓任 杨煜 黄宇欣 沈啸伟 陈奇超 高海军[1] WANG Ziren;YANG Yu;HUANG Yuxin;SHEN Xiaowei;CHEN Qichao;GAO Haijun(Key Laboratory for RF Circuits and Systems,Ministry of Education,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China)

机构地区：[1]杭州电子科技大学射频电路与系统教育部重点实验室,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2024年第2期14-22,42,共10页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家自然科学基金资助项目(61931007)。

摘　　要：基于SMIC 55 nm CMOS工艺,设计了一款面向毫米波FMCW雷达频率源的四倍频器。该四倍频器由相同拓扑结构的二倍频级联构成,二倍频核心采用Push-Push结构实现,采用磁耦合谐振器(MCR)实现输入阻抗匹配,同时实现单端转差分和抑制谐波的功能;论文同时提出了一种谐波抑制结构,运用带通结构结合MCR完成级间匹配和输出功率匹配,满足抑制谐波和较高输出功率的要求。设计结果表明,在60~64 GHz输出频率内,四倍频器饱和输出功率为2.2 dBm,谐波抑制度大于35 dBc,直流功耗59 mW。该四倍频器在满足宽倍频器程的前提下,具有高谐波抑制度和高输出功率的特点,可用于毫米波雷达系统中的频率源产生电路。Based on the SMIC 55 nm CMOS process,a quadrupler is designed which is for the use of millimeter-wave FMCW radar frequency sources.The quadrupler consists of a cascaded topology of doubler stages with the doubler core utilizing the Push-Push topology.The magnetic-coupled resonators(MCR)for matching the input impedance while achieving single-ended to differential conversion and harmonic suppression functionalities.Meanwhile,a harmonic suppression structure is proposed,combining a bandpass structure with MCR to achieve inter-stage matching and output power matching,meeting the requirements for harmonic suppression and higher output power.The design results demonstrate that within the output frequency range of 60 GHz~64 GHz,the quadrupler achieves a saturated output power of 2.2 dBm with harmonic suppression greater than 35 dBc and a DC power consumption of 59 mW.This quadrupler exhibits high harmonic suppression and high output power under the premise of satisfying the wide octave range,making it suitable for frequency source generation circuits in millimeter-wave radar systems.

关 键 词：MCR 四倍频器 CMOS工艺 谐波抑制 毫米波 频率源 

分 类 号：TN432[电子电信—微电子学与固体电子学] TN771