𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A transconductance-boosted complementary Colpitts voltage-controlled oscillator

✍ Scribed by Cheng-Chen Liu; Sheng-Lyang Jang; Cheng-Cih Wang; Miin-Horng Juang

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
347 KB
Volume
53
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A g~m~‐boosted complementary Colpitts differential voltage‐controlled oscillator (VCO) is proposed and implemented in a 0.18‐μm CMOS 1P6M process.It consists of two single‐ended p‐core Colpitts oscillators via g~m~‐enhanced cross‐coupled Colpitts transistors to obtain a differential output. At the supply voltage of 1.45 V, the output phase noise of the differential VCO is −119.2 dBc/Hz at 1 MHz offset frequency from the carrier frequency of 8.69 GHz, and the figure of merit is −190.2 dBc/Hz. Total VCO core power consumption is 5.99 mW. Tuning range is 1.01 GHz, from 8.69 to 9.7 GHz, while the control voltage was tuned from 0 to 2.0 V. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1183–1186, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25934

📜 SIMILAR VOLUMES

A dual band CMOS complementary Colpitts
A dual band CMOS complementary Colpitts voltage controlled oscillator
✍ Sheng-Lyang Jang; Shao-Hua Lee; Chun-Yuan Chiu; Chien-Feng Lee 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 318 KB

## Abstract A new fully integrated, dual‐band CMOS voltage controlled oscillator (VCO) is presented. The VCO is composed of two complementary Colpitts VCOs and is implemented in 0.18‐μm CMOS technology with 2‐V supply voltage. The circuit allows the VCO to operate at two resonant frequencies with a

A CMOS Colpitts voltage controlled oscil
A CMOS Colpitts voltage controlled oscillator with an enhanced transconductance method
✍ Ching-Ian Shie; Yi-Chyun Chiang 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 686 KB

## Abstract This work presents a technique to enhance the performance of the conventional PMOS Colpitts VCO circuit. This technique is accomplished by adding an NMOS cross‐coupled pair under the traditional differential Colpitts VCO to enhance the oscillator startup condition. The signal analysis a

A 0.35-μm CMOS cross-coupled complementa
A 0.35-μm CMOS cross-coupled complementary Colpitts voltage controlled oscillator
✍ Sheng-Lyang Jang; Wei-Chih Liu; Chia-Wei Chang; Jhin-Fang Huang 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 259 KB

## Abstract This article presents a differential cross‐coupled complementary Colpitts CMOS voltage‐controlled oscillator (VCO).The low phase noise CMOS VCO has been implemented with the TSMC 0.35‐μm 2P4M CMOS technology and adopts a pair of cross‐coupled PMOS transistors to achieve faster start‐up

A quadrature CMOS clapp voltage-controll
A quadrature CMOS clapp voltage-controlled oscillator
✍ Sheng-Lyang Jang; Hsiu-An Yeh; Chia-Wei Chang; Miin-Horng Juang; Han-Sheng Chen 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 359 KB

## Abstract A new fully integrated, CMOS Clapp quadrature voltage‐controlled oscillator (QVCO) is presented.The QVCO is composed of two differential n‐core Clapp VCOs coupled by four pMOSFETs and was implemented in the 0.18‐μm CMOS technology with 0.9‐V supply voltage. The die area is 0.574 × 0.866

A dual mode wideband bipolar microwave t
A dual mode wideband bipolar microwave transistor voltage-controlled oscillator design
✍ Andrey V. Grebennikov 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 177 KB 👁 2 views

Results of the design of the microwave bipolar voltage-controlled oscillator ( ) VCO on coupled transmission lines, tuned by varactors in a wide frequency range, are presented. An opportunity of realization of VCO octave frequency bandwidth is shown in a common emitter bipolar transistor circuit con