Wide Tuning Range Quadrature VCO Using Coupled Multivibrators

被引：0
|
作者：
Filanovsky, Igor M. [1 ]
Oliveira, Luis B. [2 ]
Fernandes, Jorge R. [3 ]
机构：
[1] Univ Alberta, Edmonton, AB, Canada
[2] Univ Nova Lisboa, INESC ID, Monte De Caparica, Portugal
[3] Univ Tecn Lisboa, INESC ID, Lisbon, Portugal
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS | 2009年 / 55卷 / 04期
关键词：
Emitter-coupled multivibrators; quadrature VCO oscillators; wide tuning range; RC Oscillators;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Two emitter-coupled multivibrators are coupled to produce a quadrature current-/voltage controlled oscillator with wide frequency tuning range (which can be wider than one decade). The tuning range, the achievable frequency of oscillation, and the synchronization transients are investigated by simulation. The influence of mismatches of timing capacitors and charging currents on synchronization is also investigated. The results of simulations for different couplings show that one can find a design with low quadrature error, low phase noise and wide tuning range. This confirms the potential of the proposed VCO for RF applications.
引用
收藏
页码：601 / 616
页数：16
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