Off-resonance oscillation, phase retention, and orthogonality modeling in quadrature oscillators

A Nikoofard, S Kananian… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Two important drawbacks of parallel coupled LC quadrature oscillators (P-QOSC) which
have not heretofore been addressed thoroughly in the literature are obviated simultaneously …

Analysis and Design of a 21.2-to-25.5-GHz Triple-Coil Transformer-Coupled QVCO

Y Zhao, C Fan, J Yin, PI Mak… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This paper reports a triple-coil transformer-coupled quadrature voltage-controlled oscillator
(TC-QVCO), which inherently provides the quadrature signal without using the noisy active …

Design of wideband low phase noise class-C QVCO with low amplitude and phase errors

H Zhang, Q Xue - IEEE Microwave and Wireless Components …, 2015 - ieeexplore.ieee.org
This letter presents a wideband, low phase noise, quadrature voltage controlled oscillator
(QVCO) implemented in 0.18 μm CMOS. In order to improve the phase noise while provide …

A very low power quadrature VCO with modified current-reuse and back-gate coupling topology

Q Wan, J Dong, H Zhou, F Yu - Journal of Circuits, Systems and …, 2017 - World Scientific
In this paper, a very low power modified current-reused quadrature voltage-controlled
oscillator (QVCO) is proposed with the back-gate coupling technique for the quadrature …

A 0.3-V power supply 2.4-GHz-band Class-C VCO IC with amplitude feedback loop in 65-nm CMOS

X Yang, Y Uchida, K Xu, W Wang… - Analog Integrated Circuits …, 2014 - Springer
A Class-C voltage-control-oscillator (VCO) IC with an amplitude feedback loop for ultra-low-
voltage application is proposed. The Class-C VCO consists of an LC-VCO circuit and an …

An 8.2 GHz triple coupling low-phase-noise class-F QVCO in 65nm CMOS

H Jia, B Chi, Z Wang - … 2015-41st European Solid-State Circuits …, 2015 - ieeexplore.ieee.org
An 8.2 GHz low-phase-noise Class-F quadrature voltage controlled oscillator (QVCO) is
presented. With the proposed triple coupling technique, the oscillation frequency of the …

A CMOS back-gate coupling LC quadrature VCO with switched self-biasing tail transistor technique

Q Wan, Y Liu, Q Wang - Circuits, Systems, and Signal Processing, 2015 - Springer
In this paper, a novel complementary differential QVCO using back-gate coupling and
switched self-biasing techniques is presented. Since the back-gates of the PMOS switching …

A new technique for the design of multi-phase voltage controlled oscillators

J Sun, P Huang, Y Sun - Journal of Circuits, Systems and …, 2017 - World Scientific
In this work, a novel circuit structure for second-harmonic multi-phase voltage controlled
oscillator (MVCO) is presented. The proposed MVCO is composed of N (N being an integer …

A C-band low-power sub-1volt current-reused multiphase oscillator

M Karimian, E Ebrahimi - Integration, 2021 - Elsevier
A new sub-1V and low power multiphase voltage-controlled oscillator (QVCO) with current-
reused structure is proposed. The proposed core oscillator consists of two N-metal oxide …

CMOS quadrature voltage controlled oscillator uses in measuring blood glucose applications

WC Lai, SL Jang, HC Lee… - 2016 9th International …, 2016 - ieeexplore.ieee.org
This letter proposes a LC-resonance CMOS quadrature voltage controlled oscillator (QVCO)
uses in wireless communications and measuring blood glucose applications fabricated in …