A novel distributed voltage-controlled oscillator for wireless systems

Z. A. Shaik, P. Shastry
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引用次数: 8

Abstract

A novel distributed voltage-controlled oscillator based on distributed amplifier topology is presented in this paper. The distributed voltage-controlled oscillator architecture proposed here is new. The oscillator tuning is achieved by changing the center frequency of a narrowband varactor tunable band-pass filter in the feedback loop. The measured tuning range of the prototype oscillator is 1.7 GHz (from .7 to 2.4 GHz). The highest measured harmonic level is 19 dB below the fundamental. The oscillator phase noise over the tuning range is approximately -116 dBc/Hz at 1 MHz offset as revealed by simulations. The design as well as simulation and measured results of the oscillator are summarized. The oscillator topology is suitable for monolithic implementation.
一种新型无线系统分布式压控振荡器
提出了一种基于分布式放大器拓扑结构的新型分布式压控振荡器。本文提出的分布式压控振荡器结构是一种新的结构。振荡器调谐是通过改变反馈环路中窄带变容可调谐带通滤波器的中心频率实现的。原型振荡器的测量调谐范围为1.7 GHz (0.7 ~ 2.4 GHz)。测得的最高谐波电平比基波低19db。仿真结果表明,在1 MHz偏移时,调谐范围内振荡器相位噪声约为-116 dBc/Hz。总结了该振荡器的设计、仿真和测量结果。振荡器拓扑结构适合于单片实现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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