Design of Digitally Controlled Ring Oscillator for UWB Impulse Radio

DENG Chun; GONG Min; CHEN Chang; WU Qi-rong

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Design of Digitally Controlled Ring Oscillator for UWB Impulse Radio

更新时间：2026-09-04

- Design of Digitally Controlled Ring Oscillator for UWB Impulse Radio
- Vol. 28, Issue 9, Pages: 17-21(2011)
- 作者机构：
  
  四川大学物理科学与技术学院微电子技术四川省重点实验室,四川,成都,610064
- 作者简介：
- 基金信息：
- DOI：
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- Published：2011
- 稿件说明：
移动端阅览
邓春, 龚敏, 陈昶, 邬齐荣. 一种用于IR-UWB的数控环形振荡器设计[J]. 微电子学与计算机, 2011, 28(9): 17-21.

DENG Chun, GONG Min, CHEN Chang, et al. Design of Digitally Controlled Ring Oscillator for UWB Impulse Radio[J]. 2011, 28(9): 17-21.
邓春, 龚敏, 陈昶, 邬齐荣. 一种用于IR-UWB的数控环形振荡器设计[J]. 微电子学与计算机, 2011, 28(9): 17-21. DOI：

DENG Chun, GONG Min, CHEN Chang, et al. Design of Digitally Controlled Ring Oscillator for UWB Impulse Radio[J]. 2011, 28(9): 17-21. DOI：

摘要

设计了一个应用于超宽带脉冲无线电 (IR-UWB) 通信系统的数控环形振荡器 (DCRO) .DCRO采用3调谐

包括电压粗调谐和开关变容管精调谐

逐级提高调谐精度.提出了一种新型延时单元

采用多环路结构

提高了环形振荡器的振荡频率

降低了功耗.设计采用CSMC 0.18μm互补金属氧化物半导体工艺

电源电压1.8V

使用SpectreRF仿真验证

数控环形振荡器的调谐范围为3~8.6GHz

调谐精度为2MHz

当工作频率在8.6GHz时

偏离主频10MHz处相位噪声为-112.4dBc/Hz

功耗为20mW.

Abstract

In this paper

a digitally controlled ring oscillator (DCRO) for ultra-wideband impulse radio (IR-UWB) communication system is presented.Three-stage tuning method is applied in the DCRO

including coarse voltage tuning and fine switched varactor tuning.A novel delay cell is proposed and multiple-loop architecture is utilized for ring oscillator

allowing to obtain high operation frequency and low power consumption.Under CSMC 0.18μm CMOS process

when the supply voltage is 1.8V

the DCRO has a wide frequency tuning range from 3 to 8.6GHz and a frequency resolution of 2MHz.At 8.6GHz

the circuit achieves a phase noises of-112.4dBc/Hz at 10MHz offset.The total power consumption is 20mW.

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