基于双电压和倍频技术的低功耗高效率发射机  

Low-power and high-efficiency transmitter based on dual-supply voltage and frequency multiplication technique

作　　者：崔梦倩 宗培胜 魏国 王科平 CUI Meng-qian;ZONG Pei-sheng;WEI Guo;WANG Ke-ping(School of Microelectronic,Tianjin University,Tianjin 300072,China;School of Information Science and Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]天津大学微电子学院,天津300072 [2]东南大学信息科学与工程学院,江苏南京211189

出　　处：《浙江大学学报（工学版）》2022年第7期1294-1301,共8页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金资助项目(61774035);江苏省自然科学基金资助项目(BK20191260).

摘　　要：为了克服电池容量的局限性,延长芯片的待机时间,针对传统发射机的高功耗、低效率问题,提出新型发射机架构.采用2级注入锁定环形振荡器提供多相信号,电荷泵自举升压电路对该多相信号进行电压提升,实现低电压低功耗设计.边沿合成器对多相信号进行倍频,使前级电路工作在低频,降低系统功耗.基于55 nm CMOS工艺,设计433 MHz ISM频段发射机进行验证.仿真结果表明,发射机的输出功率为−9.7 dBm,环形振荡器和电荷泵自举升压电路工作在0.6 V电源电压下,边沿合成器工作在1.2 V电源电压下,发射机整体功耗为357.04μW,效率为29.83%,版图面积为70μm×100μm.实验结果证明,所提结构具有功耗低、效率高、面积小和复杂度低的优点.A new transmitter architecture was proposed to solve the high power consumption and low efficiency problems of the traditional transmitter in order to overcome the limitation of battery capacity and prolong the standby time of the chip.A two-stage ring oscillator based on injection locking technique was used to provide multiphase signal.The self-boosted charge pump circuit boosts the voltage of the multi-phase signal in order to achieve a low-voltage and low-power design.The edge combiner was used to multiply the frequency of the multiphase signal,which ensured that the pre-stage circuit can work at low frequency with low power consumption.The 433 MHz ISM transmitter was designed in a 55 nm CMOS technique for verification.The simulation results show that the output power is−9.7 dBm.The ring oscillator and charge pump can work at a 0.6 V supply,and the edge combiner works under 1.2 V supply.The whole transmitter consumes 357.04μW,the efficiency is 29.83%,and the layout occupies an area of 70μm×100μm.The simulation results show that the proposed structure has the advantages of low power consumption,high efficiency,small area and low complexity.

关 键 词：发射机 低功耗 低电压 自举升压 边沿合成 注入锁定 

分 类 号：TN432[电子电信—微电子学与固体电子学]