Analysis and review of main characteristics of Colpitts oscillators,International Journal of Circuit Theory and Applications

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Analysis and review of main characteristics of Colpitts oscillators
International Journal of Circuit Theory and Applications ( IF 1.8 ) Pub Date : 2021-03-31 , DOI: 10.1002/cta.3006
Mohammad Jafar Hemmati ₁ , Rasoul Dehghani ₂

Affiliation

In this review, different topologies of CMOS Colpitts oscillators including single‐ended and differential configurations are studied, and the main specifications of them are presented. The studied LC tank Colpitts oscillators operating at gigahertz frequencies are categorized in several main structures to have more insight into their comparison. Also, the main characteristics of the Colpitts voltage‐controlled oscillators (VCOs) are compared and analyzed according to their configurations and calculated results of their transconductances. Besides, the Colpitts quadrature voltage‐controlled oscillators (QVCOs) realized by the mentioned VCOs are studied and categorized. Also, the various coupling techniques adopted in each QVCO to generate output signals with 90° phase differences are highlighted.

中文翻译：

柯尔皮兹振荡器的主要特性分析与评述

在这篇综述中，研究了CMOS Colpitts振荡器的不同拓扑结构，包括单端和差分配置，并给出了它们的主要规格。研究过的以千兆赫兹频率工作的LC储能Colpitts振荡器被归类为几个主要结构，以更深入地了解它们的比较。此外，还根据其配置和跨导计算结果对Colpitts压控振荡器（VCO）的主要特性进行了比较和分析。此外，还对上述VCO实现的Colpitts正交压控振荡器（QVCO）进行了研究和分类。此外，每个QVCO中采用的各种耦合技术都可以生成具有90°相位差的输出信号。

更新日期：2021-04-23

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