An LC-VCO with one octave tuning range

2006 ◽  
Author(s):  
A. Kampe ◽  
H. Olsson
Keyword(s):  
Tuning Range ◽  
Lc Vco

Power Efficient Implementation of Low Noise CMOS LC VCO using 32nm Technology for RF Applications

2018 ◽  
Vol 6 (8) ◽  
pp. 53
Author(s):  
Shitesh Tiwari ◽  
Sumant Katiyal ◽  
Parag Parandkar
Keyword(s):  
Power Consumption ◽  
Phase Noise ◽  
Tuning Range ◽  
Low Voltage ◽  
Performance Comparison ◽  
Low Noise ◽  
Center Frequency ◽  
Voltage Controlled Oscillator ◽  
Low Phase Noise ◽  
Lc Vco

Voltage Controlled Oscillator (VCO) is an integral component of most of the receivers such as GSM, GPS etc. As name indicates, oscillation is controlled by varying the voltage at the capacitor of LC tank. By varying the voltage, VCO can generate variable frequency of oscillation. Different VCO Parameters are contrasted on the basis of phase noise, tuning range, power consumption and FOM. Out of these phase noise is dependent on quality factor, power consumption, oscillation frequency and current. So, design of LC VCO at low power, low phase noise can be obtained with low bias current at low voltage.  Nanosize transistors are also contributes towards low phase noise. This paper demonstrates the design of low phase noise LC VCO with 4.89 GHz tuning range from 7.33-11.22 GHz with center frequency at 7 GHz. The design uses 32nm technology with tuning voltage of 0-1.2 V. A very effective Phase noise of -114 dBc / Hz is obtained with FOM of -181 dBc/Hz. The proposed work has been compared with five peer LC VCO designs working at higher feature sizes and outcome of this performance comparison dictates that the proposed work working at better 32 nm technology outperformed amongst others in terms of achieving low Tuning voltage and moderate FoM, overshadowed by a little expense of power dissipation. 

A 210.4-dBc/Hz FoMT 67.9% Tuning Range LC-VCO IC with a Single Analog Voltage-Controlled Novel Varactor in 40-nm CMOS SOI

2021 ◽  
Author(s):  
Mengchu Fang ◽  
Akihiko Kumura ◽  
Toshihiko Yoshimasu
Keyword(s):  
Tuning Range ◽  
Analog Voltage ◽  
Lc Vco

Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System

2021 ◽  
Author(s):  
Kiho Lee ◽  
Dongho Lee ◽  
Jusung Kim ◽  
Songcheol Hong
Keyword(s):  
Dielectric Spectroscopy ◽  
Tuning Range ◽  
Frequency Tuning ◽  
Spectroscopy System ◽  
Lc Vco

A 0.7 V 6.66–9.36 GHz wide tuning range CMOS LC VCO with small chip size

2017 ◽  
Vol 104 (10) ◽  
pp. 1763-1776 ◽  
Author(s):  
Jun-Da Chen ◽  
Jie Zhang
Keyword(s):  
Tuning Range ◽  
Wide Tuning Range ◽  
Chip Size ◽  
Lc Vco

A 1.8-GHz LC VCO with 1.3-GHz tuning range and digital amplitude calibration

2005 ◽  
Vol 40 (4) ◽  
pp. 909-917 ◽  
Author(s):  
A.D. Berny ◽  
A.M. Niknejad ◽  
R.G. Meyer
Keyword(s):  
Tuning Range ◽  
Lc Vco

A 201.8-dBc/Hz-FoMT Octave-Tuning-Range LC-VCO IC With a Self-Shifted Voltage-Controlled Novel Varactor in 45-nm CMOS SOI

2021 ◽  
Author(s):  
Mengchu Fang ◽  
Toshihiko Yoshimasu
Keyword(s):  
Tuning Range ◽  
Lc Vco

A −195 dBc/Hz FoMT 20.8-to-28-GHz LC VCO with Transformer-Enhanced 30% Tuning Range in 65-nm CMOS

2018 ◽  
Author(s):  
S. Lightbody ◽  
A. H. M. Shirazi ◽  
H. Djahanshahi ◽  
R. Zavari ◽  
S. Mirabbasi ◽  
...  
Keyword(s):  
Tuning Range ◽  
Lc Vco
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