重庆邮电大学学报（自然科学版）2019，Vol.31Issue(1)：89-94,6.DOI:10.3979/j.issn.1673-825X.2019.01.012
无片上电感的低功耗高线性度CMOS混频器
An inductorless low power high linearity CMOS mixer
摘要
Abstract
The number of internet of things (IOT) devices is expected to increase rapidly in the near future. Prolonging battery life and improving signal dynamic range of RF front end of the communication system are the major concerns for IOT applications. In order to solve the problem of RF power consumption and linearity, a novel Gilbert mixer is proposed. Compared with the conventional Gilbert mixer, the proposed mixer utilizes subthreshold PMOS/NMOS complementary structure at the transconductance stage and combines the current reuse and derivative superposition technologies, realizing a trade-off between power consumption and linearity. The mixer also employs two cross-coupling capacitors to generate the negative impedance which cancels parasitic capacitance, achieving high linearity with low power consumption. Implemented in HHNEC0.18 μm Bi CMOS process, the post simulation results show that the mixer has a gain of 6.2 ～ 7.6 d B from 0.4 GHz to 3 GHz and a IIP3 of 14.96 d Bm at 2.4 GHz while having a power consumption of 1.8 m W from 1 V supply voltage. The mixer core circuit size is 460 μm × 190 μm. Compared with other work, the mixer has the advantages of low power consumption and high linearity.关键词
混频器/负阻抗/导数叠加/低功耗/高线性度Key words
mixer/negative impedance/derivative superposition/low power/high linearity分类
信息技术与安全科学引用本文复制引用
文枭鹏,张为,刘艳艳..无片上电感的低功耗高线性度CMOS混频器[J].重庆邮电大学学报（自然科学版）,2019,31(1):89-94,6.基金项目
国家重点研发计划 (2016YFE0100400) （2016YFE0100400）
