Programmable active inductor-based wideband VCO/QVCO design

被引：15

作者：

Huang, G. ^{[1
]}

Kim, B. -S. ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Informat & Commun, RF Microelect Design Lab, Suwon 440746, Gyeonggi Do, South Korea

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2008年 / 2卷 / 08期

关键词：

D O I：

10.1049/iet-map:20070340

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：

Programmable wideband voltage-controlled oscillator (VCO) and quadrature VCO (QVCO) circuits which adopt modified gyrator-C-type active inductors with PMOS transistors in the feedback path are presented here. New design equations are derived for an active inductor considering the effects of the parasitic capacitance of PMOS and are used to design a high-Q active inductor. The fabricated VCO and QVCO achieve frequency tuning ranges from 1.85 to 3.66 GHz and 1.55 to 3.61 GHz, respectively. The measured phase noise of VCO and QVCO range from -81.1 to -111.3 dBc/Hz and from -80.1 to -107.7 dBc/Hz at 3 MHz offset, respectively.

引用

页码：830 / 838

页数：9

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