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A 068-THz Receiver With Third-Order Subharmonic Mixing in 65-nm CMOS Kaizhe Guo
65nm CMOS工艺下实现0.68-THz接收机，采用三次谐波混频技术提升性能。
682GHz下噪声系数28.4dB，输入频率范围138GHz
太赫兹接收机三次谐波混频CMOS双平衡拓扑噪声系数
▸基于双平衡拓扑的三次谐波混频器设计
▸利用杂散混频产物提升中频输出
▸引入补偿电容改善高频信号不平衡问题
Abstract
This article presents a 0.68-THz receiver with the
third-order subharmonic mixing in a 65-nm CMOS technology.
In this work, a third-order subharmonic mixer based on a
double-balanced topology is proposed. The spurious mixing
product of the mixer is utilized to increase the IF output of
the mixer, thus improving the conversion gain and noise figure
of the mixer. Besides, compensating capacitors are incorporated
in the double-balanced topology to alleviate the severe signal
imbalance in this topol