JSSC 2012第5期RF & Wireless65nm

A Compact and Low Power 510 GHz Quadrature Local Oscillator for Cognitive Radio

设计了一种紧凑低功耗的510 GHz正交本地振荡器，用于认知无线电。

65nm CMOS, 1V, 22mA, 5–10 GHz, -dBc/Hz@1MHz offset

正交本地振荡器低功耗认知无线电LC-VCO注入锁定环形振荡器

▸使用差分调谐LC-VCO生成13.3–20 GHz信号

▸采用4级差分注入锁定环形振荡器生成正交输出相位

▸不限制50%占空比的输入信号

Abstract

This paper presents the design and implementation of a compact and low power quadrature local oscillator (LO) for creating 13.3–20 GHz signal initially from a differentially tuned LC-VCO and then converting it to the desired 5–10 GHz with con- tinuous frequency coverage. To accomplish such purpose, a 4-stage differential injection-locked rin g oscillator (ILRO) is used subse- q u e n t l yt ot h el a t c h - b a s e dd i v i der to generate quadrature output phases without restricting 50% duty c