Switched-inductor VCO based on tapped vertical solenoid inductors

被引：15

作者：

Zou, Wanghui ^{[1
]}

Chen, Xiaofei ^{[1
]}

Dai, Kui ^{[1
]}

Zou, Xuecheng ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Res Ctr VLSI Circuits & Syst, Wuhan 430074, Peoples R China

来源：

ELECTRONICS LETTERS | 2012年 / 48卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Circuit oscillations - Phase noise - Electric inductors - Solenoids - Oscillistors;

D O I：

10.1049/el.2012.0341

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 new switched-inductor voltage controlled oscillator (VCO) scheme based on tapped vertical solenoid inductors is presented. With tapping ports, various effective inductances are selected by switches for multi-band operation. As a proof of concept, two VCOs, with one and two tapping ports separately, are implemented in a 0.18 mm 1P6M standard CMOS. Because of the vertical structure of the inductors, the new scheme consumes much less area than the conventional switch-inductor VCOs. The measured frequency bands of the VCOs are located between 1.96 and 3.49 GHz, and the measured phase noise at 1 MHz offset is between -115.4 and -118.5 dBc/Hz across all bands under power consumption of 14.4 mW (8 mA, 1.8 V).

引用

页码：509 / 510

页数：2

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