← 返回 JSSC 论文列表JSSC 2012第6期Clocking & PLLs90nm CMOSVCO
Low Phase Noise Wide Tuning Range N-Push Cyclic-Coupled Ring Oscillators
提出两种N-Push循环耦合环形振荡器，实现低相位噪声和宽调谐范围。
相位噪声在1 MHz偏移时为-103.4 dBc/Hz（3.16 GHz）和-101.6 dBc/Hz（12.8 GHz），毫米波频段为-95 dBc/Hz（13-25 GHz）
循环耦合环形振荡器N-Push技术相位噪声毫米波宽调谐范围
▸采用N-Push/M-Push技术实现宽频带输出
▸在毫米波频段实现低相位噪声
▸通过循环耦合结构提升相位噪声性能
Abstract
Cyclic-coupled ring oscillators (CCRO) provide
several unique features over regular ring oscillators such as avail-
ability of multiple sets of phase-shifted outputs and reduced phase
noise. Furthermore, when combined with N-push frequency multi-
plication low phase noise, wide t uning ranges and millimeter-wave
(mm-wave) frequencies can be realized. In this work, we propose
two N- p u s hC C R O sf a b r i c a t e di na9 0n md i g i t a lC M O Sp r o c e s s .
First, a wideband N-Push/M-Push CC