Design of Low-Noise -Band SiGe Bipolar VCOs: Theory and Implementation

F Padovan, M Tiebout, KLR Mertens… - … on Circuits and …, 2014 - ieeexplore.ieee.org
A study of K-band SiGe bipolar VCOs is reported in this paper. The design challenges
related to the operation in the K-band and the use of a pure bipolar technology are …

Design of low phase-noise oscillators and wideband VCOs in InGaP HBT technology

D Kuylenstierna, S Lai, M Bao… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
A method for design of low phase-noise balanced-Colpitts (BC) fixed-frequency oscillators
(FFOs) and wideband voltage-controlled oscillators (VCOs) is presented. Analytical …

[HTML][HTML] A Bandwidth-Enhanced Differential LC-Voltage Controlled Oscillator (LC-VCO) and Superharmonic Coupled Quadrature VCO for K-Band Applications

F Ullah, Y Liu, Z Li, X Wang, MM Sarfraz, H Zhang - Electronics, 2018 - mdpi.com
A novel varactor circuit exhibiting a wider tuning range and a new technique for quadrature
coupling of LC-Voltage Controlled Oscillator (LC-VCO) is presented and validated on a 25 …

A 24-GHz single-transistor oscillator on paper

V Palazzi, F Alimenti, D Zito… - IEEE Microwave and …, 2020 - ieeexplore.ieee.org
This letter describes a single-transistor oscillator implemented on a paper substrate at the
operating frequency of 24 GHz, based on a design procedure that makes it possible to …

Low phase noise power-efficient MMIC GaN-HEMT oscillator at 15 GHz based on a quasi-lumped on-chip resonator

M Hörberg, D Kuylenstierna - 2015 IEEE MTT-S International …, 2015 - ieeexplore.ieee.org
This paper reports on a negative resistance 15 GHz GaN HEMT oscillator using a quasi-
lumped integrated resonator. The resonator is based on a lumped element parallel LC …

A 21GHz 20.5%-tuning range Colpitts VCO with− 119 dBc/Hz phase noise at 1MHz offset

F Boscolo, F Padovan, F Quadrelli… - ESSCIRC 2017-43rd …, 2017 - ieeexplore.ieee.org
A SiGe BiCMOS Colpitts VCO with a transformer-coupled varactor operating from 18.8 to
23.1 GHz is presented. The Colpitts topology is leveraged to trade a slight degradation in the …

Low phase noise sub-1 V supply 12 and 18 GHz VCOs in 90 nm CMOS

H Jacobsson, M Bao, L Aspemyr… - 2006 IEEE MTT-S …, 2006 - ieeexplore.ieee.org
Two low phase noise, sub-1 V supply VCO topologies have been explored at 12 and 18
GHz in a 90 nm CMOS technology for direct LO generation in microwave link applications. At …

A SiGe bipolar VCO for backhaul E-band communication systems

F Padovan, M Tiebout, K Mertens… - 2012 Proceedings of …, 2012 - ieeexplore.ieee.org
A K-band SiGe bipolar VCO operating from 18.9 to 22.1 GHz is presented. The oscillator
features a phase noise as low as-136.5 dBc/Hz at 10 MHz offset from the 22.1 GHz carrier …

A triple-tuned ultra-wideband VCO

M Tsuru, K Kawakami, K Tajima… - IEEE transactions on …, 2008 - ieeexplore.ieee.org
We have already proposed a triple-tuned voltage-controlled oscillator (VCO) for achieving
an ultra-wideband characteristic. The triple-tuned VCO consists of an active device and …

SiGe BiCMOS VCO with 27% tuning range for 5G communications

F Padovan, M Tiebout, F Dielacher… - 2015 Asia-Pacific …, 2015 - ieeexplore.ieee.org
A SiGe BiCMOS VCO with a transformer-coupled varactor operating from 12 to 15.9 GHz is
presented. The oscillator core features a phase noise as low as− 117dBc/Hz at 1 MHz offset …