A 196.5 dBc/Hz FOMT 16.8-21.6-GHz Class-F23 CMOS VCO With Transformer-Based Optimal Q-Factor Tank

被引：12

作者：

Hong, Feifan ^{[1
,2
]}

Ding, Tianao ^{[1
,2
]}

Zhao, Dixian ^{[1
,2
]}

机构：

[1] Southeast Univ, Sch Informat Sci & Engn, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China

[2] Purple Mt Labs, Nanjing 211100, Peoples R China

来源：

IEEE SOLID-STATE CIRCUITS LETTERS | 2022年 / 5卷

关键词：

Class-F-23; oscillator; impulse sensitivity function (ISF); Ku/K-band; low-phase noise (PN); low power; quality factor; transformer; voltage-controlled oscillator (VCO); wide tuning range (TR); OSCILLATOR;

D O I：

10.1109/LSSC.2022.3160488

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This letter presents an optimal tank-Q Class-F-23 voltage-controlled oscillator (VCO) in 65-nm CMOS. The Q-factor of the transformer-based multi-LC resonator is maximized in the Class-F operation mode by the proposed graphical Q-optimization method. The frequency tuning range (TR) is expanded by 26% as well. The phase noise (PN) is improved by reshaping the impulse sensitivity function (ISF) with the 2nd and 3rd harmonic tuning. Occupying 0.112 mm(2), the VCO at 16.8 GHz exhibits -112.2 dBc/Hz PN at 1 MHz offset and 196.5 dBc/Hz FOMT at 10 MHz offset. The measured TR is 25% (16.8-21.6 GHz). The oscillator core consumes 7 mW at 1 V supply.

引用

页码：62 / 65

页数：4

共 10 条

[1] A Class-F CMOS Oscillator [J].