Varactor characteristics, oscillator tuning curves, and AM-FM conversion

被引：161

作者：

Hegazi, E ^{[1
]}

Abidi, AA ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2003年 / 38卷 / 06期

关键词：

AM-FM conversion; differential LC oscillator; oscillator; phase noise; tuning curve; varactor; voltage-controlled oscillator (VCO) sensitivity;

D O I：

10.1109/JSSC.2003.811968

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A simple analysis relates the small-signal specification of a varactor's capacitance to an oscillator's tuning curve. The notion of an effective capacitance across the amplitude of oscillation is introduced. The analysis also explains how the varactor converts AM noise on the oscillation into FM, which is phase noise. The analysis is experimentally validated.

引用

页码：1033 / 1039

页数：7

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