Low-Phase-Noise VCO using Cascode Q-enhancement Connection and Source-Damping-Resistance Technique

被引：0

作者：

Wei, Muh-Dey ^{[1
]}

Chang, Sheng-Fuh ^{[2
]}

Ko, Gyn-Wei ^{[3
]}

Negra, Renato ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Chair High Frequency Elect, D-52074 Aachen, Germany

[2] Natl Chung Cheng Univ, Dept Elect Engn, Dept Commun Engn, Chiayi 62102, Taiwan

[3] NXP Semicond, Prod Qual Ctr, Kaohsiung 811, Taiwan

来源：

PROCEEDINGS OF THE 2020 GERMAN MICROWAVE CONFERENCE (GEMIC) | 2020年

关键词：

Voltage-Controlled-Oscillator (VCO); Low phase noise; Q-enhancement; source damping technique; CMOS; OSCILLATOR;

D O I：

暂无

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：

In this paper a cascode CMOS VCO with a source damping-resistance technique is proposed to reach low phase noise. A cascode cross-coupling connection is able to enhance the quality factor (Q) of the tank. Furthermore, a source-damping resistance technique is adopted to improve phase noise originating from different mechanism. An optimum damping resistance is studied for different offset of phase noise. Measured oscillation frequency is from 2.26 GHz to 2.14 GHz. The measured phase noise at 1 MHz offset is -125.9 dBc/Hz at 2.14 GHz, and the core power consumption is 3.0 mW from a supply voltage of 1.5 V. A FOM of -187.6 at 1 MHz offset is obtained. Two different phase noise improvement techniques merged simultaneously are demonstrated.

引用

页码：132 / 135

页数：4

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